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Finding the Fourth Proportional to 144,047.30, 215,560.65 and 125,530.70

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Solution

The fourth proportional to 144,047.30, 215,560.65 and 125,530.70 is: 187,851.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,047.30 : 215,560.65 = 125,530.70 : x
  2. Step 2: Convert to fraction form
    144,047.30/215,560.65 = 125,530.70/x
  3. Step 3: Cross multiply
    144,047.30x = 215,560.65 × 125,530.70
  4. Step 4: Simplify right side
    144,047.30x = 27,059,479,286.96
  5. Step 5: Solve for x
    x = 27,059,479,286.96/144,047.30
  6. Step 6: Final answer
    x = 187,851.35

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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.