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Finding the Fourth Proportional to 157,352.17, 217,148.48 and 85,732.17

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Solution

The fourth proportional to 157,352.17, 217,148.48 and 85,732.17 is: 118,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,352.17 : 217,148.48 = 85,732.17 : x
  2. Step 2: Convert to fraction form
    157,352.17/217,148.48 = 85,732.17/x
  3. Step 3: Cross multiply
    157,352.17x = 217,148.48 × 85,732.17
  4. Step 4: Simplify right side
    157,352.17x = 18,616,610,402.60
  5. Step 5: Solve for x
    x = 18,616,610,402.60/157,352.17
  6. Step 6: Final answer
    x = 118,311.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.