Home / 161,615.62-242,156.13-82,621.18

Finding the Fourth Proportional to 161,615.62, 242,156.13 and 82,621.18

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Solution

The fourth proportional to 161,615.62, 242,156.13 and 82,621.18 is: 123,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,615.62 : 242,156.13 = 82,621.18 : x
  2. Step 2: Convert to fraction form
    161,615.62/242,156.13 = 82,621.18/x
  3. Step 3: Cross multiply
    161,615.62x = 242,156.13 × 82,621.18
  4. Step 4: Simplify right side
    161,615.62x = 20,007,225,204.83
  5. Step 5: Solve for x
    x = 20,007,225,204.83/161,615.62
  6. Step 6: Final answer
    x = 123,795.12

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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.