Home / 131,116.60-196,545.30-52,125.40

Finding the Fourth Proportional to 131,116.60, 196,545.30 and 52,125.40

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Solution

The fourth proportional to 131,116.60, 196,545.30 and 52,125.40 is: 78,136.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,116.60 : 196,545.30 = 52,125.40 : x
  2. Step 2: Convert to fraction form
    131,116.60/196,545.30 = 52,125.40/x
  3. Step 3: Cross multiply
    131,116.60x = 196,545.30 × 52,125.40
  4. Step 4: Simplify right side
    131,116.60x = 10,245,002,380.62
  5. Step 5: Solve for x
    x = 10,245,002,380.62/131,116.60
  6. Step 6: Final answer
    x = 78,136.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.