Home / 106,512-159,768-28,688

Finding the Fourth Proportional to 106,512, 159,768 and 28,688

Calculator

Solution

The fourth proportional to 106,512, 159,768 and 28,688 is: 43,032

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,512 : 159,768 = 28,688 : x
  2. Step 2: Convert to fraction form
    106,512/159,768 = 28,688/x
  3. Step 3: Cross multiply
    106,512x = 159,768 × 28,688
  4. Step 4: Simplify right side
    106,512x = 4,583,424,384
  5. Step 5: Solve for x
    x = 4,583,424,384/106,512
  6. Step 6: Final answer
    x = 43,032

Related Problems

Find fourth proportional to 53,256, 79,884 and 14,344
Half scale
Find fourth proportional to 213,024, 319,536 and 57,376
Double scale
Find fourth proportional to 106,513, 159,769.50 and 28,689
Similar ratio
Find fourth proportional to 159,768, 239,652 and 43,032
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.