Home / 115,456.28-173,239.08-79,972.20

Finding the Fourth Proportional to 115,456.28, 173,239.08 and 79,972.20

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Solution

The fourth proportional to 115,456.28, 173,239.08 and 79,972.20 is: 119,996.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,456.28 : 173,239.08 = 79,972.20 : x
  2. Step 2: Convert to fraction form
    115,456.28/173,239.08 = 79,972.20/x
  3. Step 3: Cross multiply
    115,456.28x = 173,239.08 × 79,972.20
  4. Step 4: Simplify right side
    115,456.28x = 13,854,310,353.58
  5. Step 5: Solve for x
    x = 13,854,310,353.58/115,456.28
  6. Step 6: Final answer
    x = 119,996.17

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1.5x scale

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.