Home / 144,002.52-198,724.05-80,343

Finding the Fourth Proportional to 144,002.52, 198,724.05 and 80,343

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Solution

The fourth proportional to 144,002.52, 198,724.05 and 80,343 is: 110,873.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,002.52 : 198,724.05 = 80,343 : x
  2. Step 2: Convert to fraction form
    144,002.52/198,724.05 = 80,343/x
  3. Step 3: Cross multiply
    144,002.52x = 198,724.05 × 80,343
  4. Step 4: Simplify right side
    144,002.52x = 15,966,086,349.15
  5. Step 5: Solve for x
    x = 15,966,086,349.15/144,002.52
  6. Step 6: Final answer
    x = 110,873.66

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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.