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Finding the Fourth Proportional to 141,439.68, 212,143.68 and 36,261.12

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Solution

The fourth proportional to 141,439.68, 212,143.68 and 36,261.12 is: 54,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,439.68 : 212,143.68 = 36,261.12 : x
  2. Step 2: Convert to fraction form
    141,439.68/212,143.68 = 36,261.12/x
  3. Step 3: Cross multiply
    141,439.68x = 212,143.68 × 36,261.12
  4. Step 4: Simplify right side
    141,439.68x = 7,692,567,437.72
  5. Step 5: Solve for x
    x = 7,692,567,437.72/141,439.68
  6. Step 6: Final answer
    x = 54,387.62

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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.