Home / 145,140.66-200,293.97-81,478.58

Finding the Fourth Proportional to 145,140.66, 200,293.97 and 81,478.58

Calculator

Solution

The fourth proportional to 145,140.66, 200,293.97 and 81,478.58 is: 112,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,140.66 : 200,293.97 = 81,478.58 : x
  2. Step 2: Convert to fraction form
    145,140.66/200,293.97 = 81,478.58/x
  3. Step 3: Cross multiply
    145,140.66x = 200,293.97 × 81,478.58
  4. Step 4: Simplify right side
    145,140.66x = 16,319,666,849.30
  5. Step 5: Solve for x
    x = 16,319,666,849.30/145,140.66
  6. Step 6: Final answer
    x = 112,440.35

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.