Home / 107,909.15-161,863.79-29,031.35

Finding the Fourth Proportional to 107,909.15, 161,863.79 and 29,031.35

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Solution

The fourth proportional to 107,909.15, 161,863.79 and 29,031.35 is: 43,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,909.15 : 161,863.79 = 29,031.35 : x
  2. Step 2: Convert to fraction form
    107,909.15/161,863.79 = 29,031.35/x
  3. Step 3: Cross multiply
    107,909.15x = 161,863.79 × 29,031.35
  4. Step 4: Simplify right side
    107,909.15x = 4,699,123,385.34
  5. Step 5: Solve for x
    x = 4,699,123,385.34/107,909.15
  6. Step 6: Final answer
    x = 43,547.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.