Home / 161,520.33-242,330.13-82,689.90

Finding the Fourth Proportional to 161,520.33, 242,330.13 and 82,689.90

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Solution

The fourth proportional to 161,520.33, 242,330.13 and 82,689.90 is: 124,060.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,520.33 : 242,330.13 = 82,689.90 : x
  2. Step 2: Convert to fraction form
    161,520.33/242,330.13 = 82,689.90/x
  3. Step 3: Cross multiply
    161,520.33x = 242,330.13 × 82,689.90
  4. Step 4: Simplify right side
    161,520.33x = 20,038,254,216.69
  5. Step 5: Solve for x
    x = 20,038,254,216.69/161,520.33
  6. Step 6: Final answer
    x = 124,060.26

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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.