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Finding the Fourth Proportional to 101,330.24, 152,026.12 and 71,805.20

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Solution

The fourth proportional to 101,330.24, 152,026.12 and 71,805.20 is: 107,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,330.24 : 152,026.12 = 71,805.20 : x
  2. Step 2: Convert to fraction form
    101,330.24/152,026.12 = 71,805.20/x
  3. Step 3: Cross multiply
    101,330.24x = 152,026.12 × 71,805.20
  4. Step 4: Simplify right side
    101,330.24x = 10,916,265,951.82
  5. Step 5: Solve for x
    x = 10,916,265,951.82/101,330.24
  6. Step 6: Final answer
    x = 107,729.60

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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.