Home / 162,112.92-243,255-115,032.24

Finding the Fourth Proportional to 162,112.92, 243,255 and 115,032.24

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Solution

The fourth proportional to 162,112.92, 243,255 and 115,032.24 is: 172,609.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,112.92 : 243,255 = 115,032.24 : x
  2. Step 2: Convert to fraction form
    162,112.92/243,255 = 115,032.24/x
  3. Step 3: Cross multiply
    162,112.92x = 243,255 × 115,032.24
  4. Step 4: Simplify right side
    162,112.92x = 27,982,167,541.20
  5. Step 5: Solve for x
    x = 27,982,167,541.20/162,112.92
  6. Step 6: Final answer
    x = 172,609.11

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1.5x scale

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.