Home / 99,602.13-137,449.20-54,280.47

Finding the Fourth Proportional to 99,602.13, 137,449.20 and 54,280.47

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Solution

The fourth proportional to 99,602.13, 137,449.20 and 54,280.47 is: 74,906.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,602.13 : 137,449.20 = 54,280.47 : x
  2. Step 2: Convert to fraction form
    99,602.13/137,449.20 = 54,280.47/x
  3. Step 3: Cross multiply
    99,602.13x = 137,449.20 × 54,280.47
  4. Step 4: Simplify right side
    99,602.13x = 7,460,807,177.12
  5. Step 5: Solve for x
    x = 7,460,807,177.12/99,602.13
  6. Step 6: Final answer
    x = 74,906.10

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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.