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Finding the Fourth Proportional to 141,650.71, 212,476.16 and 135,500.78

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Solution

The fourth proportional to 141,650.71, 212,476.16 and 135,500.78 is: 203,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,650.71 : 212,476.16 = 135,500.78 : x
  2. Step 2: Convert to fraction form
    141,650.71/212,476.16 = 135,500.78/x
  3. Step 3: Cross multiply
    141,650.71x = 212,476.16 × 135,500.78
  4. Step 4: Simplify right side
    141,650.71x = 28,790,686,281.35
  5. Step 5: Solve for x
    x = 28,790,686,281.35/141,650.71
  6. Step 6: Final answer
    x = 203,251.27

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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.