Home / 151,126.76-208,569.65-112,819.79

Finding the Fourth Proportional to 151,126.76, 208,569.65 and 112,819.79

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Solution

The fourth proportional to 151,126.76, 208,569.65 and 112,819.79 is: 155,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,126.76 : 208,569.65 = 112,819.79 : x
  2. Step 2: Convert to fraction form
    151,126.76/208,569.65 = 112,819.79/x
  3. Step 3: Cross multiply
    151,126.76x = 208,569.65 × 112,819.79
  4. Step 4: Simplify right side
    151,126.76x = 23,530,785,218.15
  5. Step 5: Solve for x
    x = 23,530,785,218.15/151,126.76
  6. Step 6: Final answer
    x = 155,702.30

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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.