Home / 143,795.52-198,441.90-80,132.76

Finding the Fourth Proportional to 143,795.52, 198,441.90 and 80,132.76

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Solution

The fourth proportional to 143,795.52, 198,441.90 and 80,132.76 is: 110,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,795.52 : 198,441.90 = 80,132.76 : x
  2. Step 2: Convert to fraction form
    143,795.52/198,441.90 = 80,132.76/x
  3. Step 3: Cross multiply
    143,795.52x = 198,441.90 × 80,132.76
  4. Step 4: Simplify right side
    143,795.52x = 15,901,697,146.64
  5. Step 5: Solve for x
    x = 15,901,697,146.64/143,795.52
  6. Step 6: Final answer
    x = 110,585.48

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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.