Home / 99,031.28-148,641.24-61,477.70

Finding the Fourth Proportional to 99,031.28, 148,641.24 and 61,477.70

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Solution

The fourth proportional to 99,031.28, 148,641.24 and 61,477.70 is: 92,275.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,031.28 : 148,641.24 = 61,477.70 : x
  2. Step 2: Convert to fraction form
    99,031.28/148,641.24 = 61,477.70/x
  3. Step 3: Cross multiply
    99,031.28x = 148,641.24 × 61,477.70
  4. Step 4: Simplify right side
    99,031.28x = 9,138,121,560.35
  5. Step 5: Solve for x
    x = 9,138,121,560.35/99,031.28
  6. Step 6: Final answer
    x = 92,275.10

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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.