Home / 100,787.70-151,129.26-29,701.14

Finding the Fourth Proportional to 100,787.70, 151,129.26 and 29,701.14

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Solution

The fourth proportional to 100,787.70, 151,129.26 and 29,701.14 is: 44,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,787.70 : 151,129.26 = 29,701.14 : x
  2. Step 2: Convert to fraction form
    100,787.70/151,129.26 = 29,701.14/x
  3. Step 3: Cross multiply
    100,787.70x = 151,129.26 × 29,701.14
  4. Step 4: Simplify right side
    100,787.70x = 4,488,711,309.36
  5. Step 5: Solve for x
    x = 4,488,711,309.36/100,787.70
  6. Step 6: Final answer
    x = 44,536.30

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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.