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Finding the Fourth Proportional to 239,876.58, 359,629.92 and 90,113.70

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Solution

The fourth proportional to 239,876.58, 359,629.92 and 90,113.70 is: 135,101.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,876.58 : 359,629.92 = 90,113.70 : x
  2. Step 2: Convert to fraction form
    239,876.58/359,629.92 = 90,113.70/x
  3. Step 3: Cross multiply
    239,876.58x = 359,629.92 × 90,113.70
  4. Step 4: Simplify right side
    239,876.58x = 32,407,582,721.90
  5. Step 5: Solve for x
    x = 32,407,582,721.90/239,876.58
  6. Step 6: Final answer
    x = 135,101.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.