Home / 195,712.39-270,078.52-115,145.10

Finding the Fourth Proportional to 195,712.39, 270,078.52 and 115,145.10

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Solution

The fourth proportional to 195,712.39, 270,078.52 and 115,145.10 is: 158,897.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,712.39 : 270,078.52 = 115,145.10 : x
  2. Step 2: Convert to fraction form
    195,712.39/270,078.52 = 115,145.10/x
  3. Step 3: Cross multiply
    195,712.39x = 270,078.52 × 115,145.10
  4. Step 4: Simplify right side
    195,712.39x = 31,098,218,337.18
  5. Step 5: Solve for x
    x = 31,098,218,337.18/195,712.39
  6. Step 6: Final answer
    x = 158,897.55

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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.