Home / 100,235.44-138,372.60-62,565.04

Finding the Fourth Proportional to 100,235.44, 138,372.60 and 62,565.04

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Solution

The fourth proportional to 100,235.44, 138,372.60 and 62,565.04 is: 86,369.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,235.44 : 138,372.60 = 62,565.04 : x
  2. Step 2: Convert to fraction form
    100,235.44/138,372.60 = 62,565.04/x
  3. Step 3: Cross multiply
    100,235.44x = 138,372.60 × 62,565.04
  4. Step 4: Simplify right side
    100,235.44x = 8,657,287,253.90
  5. Step 5: Solve for x
    x = 8,657,287,253.90/100,235.44
  6. Step 6: Final answer
    x = 86,369.52

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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.