Home / 151,099.20-208,522.62-83,121.48

Finding the Fourth Proportional to 151,099.20, 208,522.62 and 83,121.48

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Solution

The fourth proportional to 151,099.20, 208,522.62 and 83,121.48 is: 114,710.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,099.20 : 208,522.62 = 83,121.48 : x
  2. Step 2: Convert to fraction form
    151,099.20/208,522.62 = 83,121.48/x
  3. Step 3: Cross multiply
    151,099.20x = 208,522.62 × 83,121.48
  4. Step 4: Simplify right side
    151,099.20x = 17,332,708,787.88
  5. Step 5: Solve for x
    x = 17,332,708,787.88/151,099.20
  6. Step 6: Final answer
    x = 114,710.79

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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.