Home / 140,489.78-193,876.61-76,829.04

Finding the Fourth Proportional to 140,489.78, 193,876.61 and 76,829.04

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Solution

The fourth proportional to 140,489.78, 193,876.61 and 76,829.04 is: 106,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,489.78 : 193,876.61 = 76,829.04 : x
  2. Step 2: Convert to fraction form
    140,489.78/193,876.61 = 76,829.04/x
  3. Step 3: Cross multiply
    140,489.78x = 193,876.61 × 76,829.04
  4. Step 4: Simplify right side
    140,489.78x = 14,895,353,440.61
  5. Step 5: Solve for x
    x = 14,895,353,440.61/140,489.78
  6. Step 6: Final answer
    x = 106,024.47

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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.