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Finding the Fourth Proportional to 151,677.70, 209,356.86 and 88,036

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Solution

The fourth proportional to 151,677.70, 209,356.86 and 88,036 is: 121,513.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,677.70 : 209,356.86 = 88,036 : x
  2. Step 2: Convert to fraction form
    151,677.70/209,356.86 = 88,036/x
  3. Step 3: Cross multiply
    151,677.70x = 209,356.86 × 88,036
  4. Step 4: Simplify right side
    151,677.70x = 18,430,940,526.96
  5. Step 5: Solve for x
    x = 18,430,940,526.96/151,677.70
  6. Step 6: Final answer
    x = 121,513.84

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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.