Home / 112,030.08-154,600.56-61,728

Finding the Fourth Proportional to 112,030.08, 154,600.56 and 61,728

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Solution

The fourth proportional to 112,030.08, 154,600.56 and 61,728 is: 85,184.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,030.08 : 154,600.56 = 61,728 : x
  2. Step 2: Convert to fraction form
    112,030.08/154,600.56 = 61,728/x
  3. Step 3: Cross multiply
    112,030.08x = 154,600.56 × 61,728
  4. Step 4: Simplify right side
    112,030.08x = 9,543,183,367.68
  5. Step 5: Solve for x
    x = 9,543,183,367.68/112,030.08
  6. Step 6: Final answer
    x = 85,184.12

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1.5x scale

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.