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Finding the Fourth Proportional to 151,360.13, 208,877.03 and 87,734.83

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Solution

The fourth proportional to 151,360.13, 208,877.03 and 87,734.83 is: 121,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,360.13 : 208,877.03 = 87,734.83 : x
  2. Step 2: Convert to fraction form
    151,360.13/208,877.03 = 87,734.83/x
  3. Step 3: Cross multiply
    151,360.13x = 208,877.03 × 87,734.83
  4. Step 4: Simplify right side
    151,360.13x = 18,325,790,279.28
  5. Step 5: Solve for x
    x = 18,325,790,279.28/151,360.13
  6. Step 6: Final answer
    x = 121,074.10

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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.