Home / 146,122.56-201,649.20-80,711.52

Finding the Fourth Proportional to 146,122.56, 201,649.20 and 80,711.52

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Solution

The fourth proportional to 146,122.56, 201,649.20 and 80,711.52 is: 111,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,122.56 : 201,649.20 = 80,711.52 : x
  2. Step 2: Convert to fraction form
    146,122.56/201,649.20 = 80,711.52/x
  3. Step 3: Cross multiply
    146,122.56x = 201,649.20 × 80,711.52
  4. Step 4: Simplify right side
    146,122.56x = 16,275,413,438.78
  5. Step 5: Solve for x
    x = 16,275,413,438.78/146,122.56
  6. Step 6: Final answer
    x = 111,381.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.