Home / 162,217.76-243,378.78-77,984.04

Finding the Fourth Proportional to 162,217.76, 243,378.78 and 77,984.04

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Solution

The fourth proportional to 162,217.76, 243,378.78 and 77,984.04 is: 117,001.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,217.76 : 243,378.78 = 77,984.04 : x
  2. Step 2: Convert to fraction form
    162,217.76/243,378.78 = 77,984.04/x
  3. Step 3: Cross multiply
    162,217.76x = 243,378.78 × 77,984.04
  4. Step 4: Simplify right side
    162,217.76x = 18,979,660,514.67
  5. Step 5: Solve for x
    x = 18,979,660,514.67/162,217.76
  6. Step 6: Final answer
    x = 117,001.13

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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.