Home / 115,590.20-159,388.40-75,229.52

Finding the Fourth Proportional to 115,590.20, 159,388.40 and 75,229.52

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Solution

The fourth proportional to 115,590.20, 159,388.40 and 75,229.52 is: 103,734.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,590.20 : 159,388.40 = 75,229.52 : x
  2. Step 2: Convert to fraction form
    115,590.20/159,388.40 = 75,229.52/x
  3. Step 3: Cross multiply
    115,590.20x = 159,388.40 × 75,229.52
  4. Step 4: Simplify right side
    115,590.20x = 11,990,712,825.57
  5. Step 5: Solve for x
    x = 11,990,712,825.57/115,590.20
  6. Step 6: Final answer
    x = 103,734.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.