Home / 144,060.68-198,823.78-80,402.58

Finding the Fourth Proportional to 144,060.68, 198,823.78 and 80,402.58

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Solution

The fourth proportional to 144,060.68, 198,823.78 and 80,402.58 is: 110,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,060.68 : 198,823.78 = 80,402.58 : x
  2. Step 2: Convert to fraction form
    144,060.68/198,823.78 = 80,402.58/x
  3. Step 3: Cross multiply
    144,060.68x = 198,823.78 × 80,402.58
  4. Step 4: Simplify right side
    144,060.68x = 15,985,944,877.35
  5. Step 5: Solve for x
    x = 15,985,944,877.35/144,060.68
  6. Step 6: Final answer
    x = 110,966.75

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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.