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Finding the Fourth Proportional to 141,461.52, 212,285.76 and 66,603.08

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Solution

The fourth proportional to 141,461.52, 212,285.76 and 66,603.08 is: 99,948.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,461.52 : 212,285.76 = 66,603.08 : x
  2. Step 2: Convert to fraction form
    141,461.52/212,285.76 = 66,603.08/x
  3. Step 3: Cross multiply
    141,461.52x = 212,285.76 × 66,603.08
  4. Step 4: Simplify right side
    141,461.52x = 14,138,884,394.71
  5. Step 5: Solve for x
    x = 14,138,884,394.71/141,461.52
  6. Step 6: Final answer
    x = 99,948.62

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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.