Home / 156,735.90-234,974.25-77,905.08

Finding the Fourth Proportional to 156,735.90, 234,974.25 and 77,905.08

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Solution

The fourth proportional to 156,735.90, 234,974.25 and 77,905.08 is: 116,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,735.90 : 234,974.25 = 77,905.08 : x
  2. Step 2: Convert to fraction form
    156,735.90/234,974.25 = 77,905.08/x
  3. Step 3: Cross multiply
    156,735.90x = 234,974.25 × 77,905.08
  4. Step 4: Simplify right side
    156,735.90x = 18,305,687,744.19
  5. Step 5: Solve for x
    x = 18,305,687,744.19/156,735.90
  6. Step 6: Final answer
    x = 116,793.20

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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.