Home / 151,076.20-208,470.18-115,289.32

Finding the Fourth Proportional to 151,076.20, 208,470.18 and 115,289.32

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Solution

The fourth proportional to 151,076.20, 208,470.18 and 115,289.32 is: 159,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,076.20 : 208,470.18 = 115,289.32 : x
  2. Step 2: Convert to fraction form
    151,076.20/208,470.18 = 115,289.32/x
  3. Step 3: Cross multiply
    151,076.20x = 208,470.18 × 115,289.32
  4. Step 4: Simplify right side
    151,076.20x = 24,034,385,292.48
  5. Step 5: Solve for x
    x = 24,034,385,292.48/151,076.20
  6. Step 6: Final answer
    x = 159,087.83

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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.