Home / 151,380.34-208,904.73-87,755.02

Finding the Fourth Proportional to 151,380.34, 208,904.73 and 87,755.02

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Solution

The fourth proportional to 151,380.34, 208,904.73 and 87,755.02 is: 121,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,380.34 : 208,904.73 = 87,755.02 : x
  2. Step 2: Convert to fraction form
    151,380.34/208,904.73 = 87,755.02/x
  3. Step 3: Cross multiply
    151,380.34x = 208,904.73 × 87,755.02
  4. Step 4: Simplify right side
    151,380.34x = 18,332,438,759.24
  5. Step 5: Solve for x
    x = 18,332,438,759.24/151,380.34
  6. Step 6: Final answer
    x = 121,101.85

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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.