Home / 99,432.92-137,220.18-54,111.32

Finding the Fourth Proportional to 99,432.92, 137,220.18 and 54,111.32

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Solution

The fourth proportional to 99,432.92, 137,220.18 and 54,111.32 is: 74,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,432.92 : 137,220.18 = 54,111.32 : x
  2. Step 2: Convert to fraction form
    99,432.92/137,220.18 = 54,111.32/x
  3. Step 3: Cross multiply
    99,432.92x = 137,220.18 × 54,111.32
  4. Step 4: Simplify right side
    99,432.92x = 7,425,165,070.44
  5. Step 5: Solve for x
    x = 7,425,165,070.44/99,432.92
  6. Step 6: Final answer
    x = 74,675.12

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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.