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Finding the Fourth Proportional to 123,680.84, 185,531.62 and 39,453.08

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Solution

The fourth proportional to 123,680.84, 185,531.62 and 39,453.08 is: 59,182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,680.84 : 185,531.62 = 39,453.08 : x
  2. Step 2: Convert to fraction form
    123,680.84/185,531.62 = 39,453.08/x
  3. Step 3: Cross multiply
    123,680.84x = 185,531.62 × 39,453.08
  4. Step 4: Simplify right side
    123,680.84x = 7,319,793,846.39
  5. Step 5: Solve for x
    x = 7,319,793,846.39/123,680.84
  6. Step 6: Final answer
    x = 59,182.92

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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.