Home / 150,543.60-207,777.24-86,872.56

Finding the Fourth Proportional to 150,543.60, 207,777.24 and 86,872.56

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Solution

The fourth proportional to 150,543.60, 207,777.24 and 86,872.56 is: 119,899.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,543.60 : 207,777.24 = 86,872.56 : x
  2. Step 2: Convert to fraction form
    150,543.60/207,777.24 = 86,872.56/x
  3. Step 3: Cross multiply
    150,543.60x = 207,777.24 × 86,872.56
  4. Step 4: Simplify right side
    150,543.60x = 18,050,140,748.53
  5. Step 5: Solve for x
    x = 18,050,140,748.53/150,543.60
  6. Step 6: Final answer
    x = 119,899.75

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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.