Home / 156,119.40-234,011.43-67,414.68

Finding the Fourth Proportional to 156,119.40, 234,011.43 and 67,414.68

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Solution

The fourth proportional to 156,119.40, 234,011.43 and 67,414.68 is: 101,049.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,119.40 : 234,011.43 = 67,414.68 : x
  2. Step 2: Convert to fraction form
    156,119.40/234,011.43 = 67,414.68/x
  3. Step 3: Cross multiply
    156,119.40x = 234,011.43 × 67,414.68
  4. Step 4: Simplify right side
    156,119.40x = 15,775,805,669.79
  5. Step 5: Solve for x
    x = 15,775,805,669.79/156,119.40
  6. Step 6: Final answer
    x = 101,049.62

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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.