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Finding the Fourth Proportional to 131,154, 196,679.16 and 64,545.36

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Solution

The fourth proportional to 131,154, 196,679.16 and 64,545.36 is: 96,792.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,154 : 196,679.16 = 64,545.36 : x
  2. Step 2: Convert to fraction form
    131,154/196,679.16 = 64,545.36/x
  3. Step 3: Cross multiply
    131,154x = 196,679.16 × 64,545.36
  4. Step 4: Simplify right side
    131,154x = 12,694,727,186.70
  5. Step 5: Solve for x
    x = 12,694,727,186.70/131,154
  6. Step 6: Final answer
    x = 96,792.53

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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.