Home / 107,947.12-161,920.53-29,061.43

Finding the Fourth Proportional to 107,947.12, 161,920.53 and 29,061.43

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Solution

The fourth proportional to 107,947.12, 161,920.53 and 29,061.43 is: 43,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,947.12 : 161,920.53 = 29,061.43 : x
  2. Step 2: Convert to fraction form
    107,947.12/161,920.53 = 29,061.43/x
  3. Step 3: Cross multiply
    107,947.12x = 161,920.53 × 29,061.43
  4. Step 4: Simplify right side
    107,947.12x = 4,705,642,148.16
  5. Step 5: Solve for x
    x = 4,705,642,148.16/107,947.12
  6. Step 6: Final answer
    x = 43,592.10

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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.