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Finding the Fourth Proportional to 151,885.52, 209,603.40 and 88,226

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Solution

The fourth proportional to 151,885.52, 209,603.40 and 88,226 is: 121,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,885.52 : 209,603.40 = 88,226 : x
  2. Step 2: Convert to fraction form
    151,885.52/209,603.40 = 88,226/x
  3. Step 3: Cross multiply
    151,885.52x = 209,603.40 × 88,226
  4. Step 4: Simplify right side
    151,885.52x = 18,492,469,568.40
  5. Step 5: Solve for x
    x = 18,492,469,568.40/151,885.52
  6. Step 6: Final answer
    x = 121,752.68

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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.