Home / 140,487.45-193,874.21-76,823.88

Finding the Fourth Proportional to 140,487.45, 193,874.21 and 76,823.88

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Solution

The fourth proportional to 140,487.45, 193,874.21 and 76,823.88 is: 106,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,487.45 : 193,874.21 = 76,823.88 : x
  2. Step 2: Convert to fraction form
    140,487.45/193,874.21 = 76,823.88/x
  3. Step 3: Cross multiply
    140,487.45x = 193,874.21 × 76,823.88
  4. Step 4: Simplify right side
    140,487.45x = 14,894,169,044.13
  5. Step 5: Solve for x
    x = 14,894,169,044.13/140,487.45
  6. Step 6: Final answer
    x = 106,017.79

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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.