Home / 162,521.10-243,306.45-115,865.10

Finding the Fourth Proportional to 162,521.10, 243,306.45 and 115,865.10

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Solution

The fourth proportional to 162,521.10, 243,306.45 and 115,865.10 is: 173,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,521.10 : 243,306.45 = 115,865.10 : x
  2. Step 2: Convert to fraction form
    162,521.10/243,306.45 = 115,865.10/x
  3. Step 3: Cross multiply
    162,521.10x = 243,306.45 × 115,865.10
  4. Step 4: Simplify right side
    162,521.10x = 28,190,726,159.90
  5. Step 5: Solve for x
    x = 28,190,726,159.90/162,521.10
  6. Step 6: Final answer
    x = 173,458.87

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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.