Home / 162,565.20-243,629.10-115,763.40

Finding the Fourth Proportional to 162,565.20, 243,629.10 and 115,763.40

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Solution

The fourth proportional to 162,565.20, 243,629.10 and 115,763.40 is: 173,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,565.20 : 243,629.10 = 115,763.40 : x
  2. Step 2: Convert to fraction form
    162,565.20/243,629.10 = 115,763.40/x
  3. Step 3: Cross multiply
    162,565.20x = 243,629.10 × 115,763.40
  4. Step 4: Simplify right side
    162,565.20x = 28,203,332,954.94
  5. Step 5: Solve for x
    x = 28,203,332,954.94/162,565.20
  6. Step 6: Final answer
    x = 173,489.36

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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.