Home / 147,914.17-221,212.45-131,381.53

Finding the Fourth Proportional to 147,914.17, 221,212.45 and 131,381.53

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Solution

The fourth proportional to 147,914.17, 221,212.45 and 131,381.53 is: 196,487.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,914.17 : 221,212.45 = 131,381.53 : x
  2. Step 2: Convert to fraction form
    147,914.17/221,212.45 = 131,381.53/x
  3. Step 3: Cross multiply
    147,914.17x = 221,212.45 × 131,381.53
  4. Step 4: Simplify right side
    147,914.17x = 29,063,230,136.05
  5. Step 5: Solve for x
    x = 29,063,230,136.05/147,914.17
  6. Step 6: Final answer
    x = 196,487.13

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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.