Home / 115,589.20-173,383.80-74,117.20

Finding the Fourth Proportional to 115,589.20, 173,383.80 and 74,117.20

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Solution

The fourth proportional to 115,589.20, 173,383.80 and 74,117.20 is: 111,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,589.20 : 173,383.80 = 74,117.20 : x
  2. Step 2: Convert to fraction form
    115,589.20/173,383.80 = 74,117.20/x
  3. Step 3: Cross multiply
    115,589.20x = 173,383.80 × 74,117.20
  4. Step 4: Simplify right side
    115,589.20x = 12,850,721,781.36
  5. Step 5: Solve for x
    x = 12,850,721,781.36/115,589.20
  6. Step 6: Final answer
    x = 111,175.80

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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.