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Finding the Fourth Proportional to 123,639.84, 185,304.24 and 88,647.84

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Solution

The fourth proportional to 123,639.84, 185,304.24 and 88,647.84 is: 132,860.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,639.84 : 185,304.24 = 88,647.84 : x
  2. Step 2: Convert to fraction form
    123,639.84/185,304.24 = 88,647.84/x
  3. Step 3: Cross multiply
    123,639.84x = 185,304.24 × 88,647.84
  4. Step 4: Simplify right side
    123,639.84x = 16,426,820,618.84
  5. Step 5: Solve for x
    x = 16,426,820,618.84/123,639.84
  6. Step 6: Final answer
    x = 132,860.25

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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.