Home / 161,685.61-242,378.76-82,625.56

Finding the Fourth Proportional to 161,685.61, 242,378.76 and 82,625.56

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Solution

The fourth proportional to 161,685.61, 242,378.76 and 82,625.56 is: 123,861.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,685.61 : 242,378.76 = 82,625.56 : x
  2. Step 2: Convert to fraction form
    161,685.61/242,378.76 = 82,625.56/x
  3. Step 3: Cross multiply
    161,685.61x = 242,378.76 × 82,625.56
  4. Step 4: Simplify right side
    161,685.61x = 20,026,680,777.11
  5. Step 5: Solve for x
    x = 20,026,680,777.11/161,685.61
  6. Step 6: Final answer
    x = 123,861.86

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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.