Home / 99,265.08-137,002.14-72,496.20

Finding the Fourth Proportional to 99,265.08, 137,002.14 and 72,496.20

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Solution

The fourth proportional to 99,265.08, 137,002.14 and 72,496.20 is: 100,056.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,265.08 : 137,002.14 = 72,496.20 : x
  2. Step 2: Convert to fraction form
    99,265.08/137,002.14 = 72,496.20/x
  3. Step 3: Cross multiply
    99,265.08x = 137,002.14 × 72,496.20
  4. Step 4: Simplify right side
    99,265.08x = 9,932,134,541.87
  5. Step 5: Solve for x
    x = 9,932,134,541.87/99,265.08
  6. Step 6: Final answer
    x = 100,056.68

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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.