Home / 445,051.28-667,497.15-125,126.42

Finding the Fourth Proportional to 445,051.28, 667,497.15 and 125,126.42

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Solution

The fourth proportional to 445,051.28, 667,497.15 and 125,126.42 is: 187,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,051.28 : 667,497.15 = 125,126.42 : x
  2. Step 2: Convert to fraction form
    445,051.28/667,497.15 = 125,126.42/x
  3. Step 3: Cross multiply
    445,051.28x = 667,497.15 × 125,126.42
  4. Step 4: Simplify right side
    445,051.28x = 83,521,528,739.70
  5. Step 5: Solve for x
    x = 83,521,528,739.70/445,051.28
  6. Step 6: Final answer
    x = 187,667.20

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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.