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Finding the Fourth Proportional to 96,695.70, 145,043.55 and 30,141.20

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Solution

The fourth proportional to 96,695.70, 145,043.55 and 30,141.20 is: 45,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,695.70 : 145,043.55 = 30,141.20 : x
  2. Step 2: Convert to fraction form
    96,695.70/145,043.55 = 30,141.20/x
  3. Step 3: Cross multiply
    96,695.70x = 145,043.55 × 30,141.20
  4. Step 4: Simplify right side
    96,695.70x = 4,371,785,924.04
  5. Step 5: Solve for x
    x = 4,371,785,924.04/96,695.70
  6. Step 6: Final answer
    x = 45,211.79

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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.