Home / 195,712.20-270,078.26-115,144.91

Finding the Fourth Proportional to 195,712.20, 270,078.26 and 115,144.91

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Solution

The fourth proportional to 195,712.20, 270,078.26 and 115,144.91 is: 158,897.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,712.20 : 270,078.26 = 115,144.91 : x
  2. Step 2: Convert to fraction form
    195,712.20/270,078.26 = 115,144.91/x
  3. Step 3: Cross multiply
    195,712.20x = 270,078.26 × 115,144.91
  4. Step 4: Simplify right side
    195,712.20x = 31,098,137,903.71
  5. Step 5: Solve for x
    x = 31,098,137,903.71/195,712.20
  6. Step 6: Final answer
    x = 158,897.29

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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.