Home / 144,151.92-198,927.60-80,490.72

Finding the Fourth Proportional to 144,151.92, 198,927.60 and 80,490.72

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Solution

The fourth proportional to 144,151.92, 198,927.60 and 80,490.72 is: 111,076.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,151.92 : 198,927.60 = 80,490.72 : x
  2. Step 2: Convert to fraction form
    144,151.92/198,927.60 = 80,490.72/x
  3. Step 3: Cross multiply
    144,151.92x = 198,927.60 × 80,490.72
  4. Step 4: Simplify right side
    144,151.92x = 16,011,825,751.87
  5. Step 5: Solve for x
    x = 16,011,825,751.87/144,151.92
  6. Step 6: Final answer
    x = 111,076.05

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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.