Home / 99,445.32-137,234.79-54,123.26

Finding the Fourth Proportional to 99,445.32, 137,234.79 and 54,123.26

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Solution

The fourth proportional to 99,445.32, 137,234.79 and 54,123.26 is: 74,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,445.32 : 137,234.79 = 54,123.26 : x
  2. Step 2: Convert to fraction form
    99,445.32/137,234.79 = 54,123.26/x
  3. Step 3: Cross multiply
    99,445.32x = 137,234.79 × 54,123.26
  4. Step 4: Simplify right side
    99,445.32x = 7,427,593,534.04
  5. Step 5: Solve for x
    x = 7,427,593,534.04/99,445.32
  6. Step 6: Final answer
    x = 74,690.23

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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.