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Finding the Fourth Proportional to 141,976, 212,901.63 and 53,167.22

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Solution

The fourth proportional to 141,976, 212,901.63 and 53,167.22 is: 79,727.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,976 : 212,901.63 = 53,167.22 : x
  2. Step 2: Convert to fraction form
    141,976/212,901.63 = 53,167.22/x
  3. Step 3: Cross multiply
    141,976x = 212,901.63 × 53,167.22
  4. Step 4: Simplify right side
    141,976x = 11,319,387,800.57
  5. Step 5: Solve for x
    x = 11,319,387,800.57/141,976
  6. Step 6: Final answer
    x = 79,727.47

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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.