Home / 140,553.90-193,962.78-76,890.96

Finding the Fourth Proportional to 140,553.90, 193,962.78 and 76,890.96

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Solution

The fourth proportional to 140,553.90, 193,962.78 and 76,890.96 is: 106,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,553.90 : 193,962.78 = 76,890.96 : x
  2. Step 2: Convert to fraction form
    140,553.90/193,962.78 = 76,890.96/x
  3. Step 3: Cross multiply
    140,553.90x = 193,962.78 × 76,890.96
  4. Step 4: Simplify right side
    140,553.90x = 14,913,984,358.47
  5. Step 5: Solve for x
    x = 14,913,984,358.47/140,553.90
  6. Step 6: Final answer
    x = 106,108.65

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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.