Home / 162,086.38-243,215.22-115,005.74

Finding the Fourth Proportional to 162,086.38, 243,215.22 and 115,005.74

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Solution

The fourth proportional to 162,086.38, 243,215.22 and 115,005.74 is: 172,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,086.38 : 243,215.22 = 115,005.74 : x
  2. Step 2: Convert to fraction form
    162,086.38/243,215.22 = 115,005.74/x
  3. Step 3: Cross multiply
    162,086.38x = 243,215.22 × 115,005.74
  4. Step 4: Simplify right side
    162,086.38x = 27,971,146,355.36
  5. Step 5: Solve for x
    x = 27,971,146,355.36/162,086.38
  6. Step 6: Final answer
    x = 172,569.38

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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.