Home / 143,795.88-198,432.18-80,134.92

Finding the Fourth Proportional to 143,795.88, 198,432.18 and 80,134.92

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Solution

The fourth proportional to 143,795.88, 198,432.18 and 80,134.92 is: 110,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,795.88 : 198,432.18 = 80,134.92 : x
  2. Step 2: Convert to fraction form
    143,795.88/198,432.18 = 80,134.92/x
  3. Step 3: Cross multiply
    143,795.88x = 198,432.18 × 80,134.92
  4. Step 4: Simplify right side
    143,795.88x = 15,901,346,869.73
  5. Step 5: Solve for x
    x = 15,901,346,869.73/143,795.88
  6. Step 6: Final answer
    x = 110,582.77

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1.5x scale

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.