Home / 162,649.66-243,849.40-82,621.86

Finding the Fourth Proportional to 162,649.66, 243,849.40 and 82,621.86

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Solution

The fourth proportional to 162,649.66, 243,849.40 and 82,621.86 is: 123,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,649.66 : 243,849.40 = 82,621.86 : x
  2. Step 2: Convert to fraction form
    162,649.66/243,849.40 = 82,621.86/x
  3. Step 3: Cross multiply
    162,649.66x = 243,849.40 × 82,621.86
  4. Step 4: Simplify right side
    162,649.66x = 20,147,290,987.88
  5. Step 5: Solve for x
    x = 20,147,290,987.88/162,649.66
  6. Step 6: Final answer
    x = 123,869.25

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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.