Home / 195,712.32-270,083.52-115,142.88

Finding the Fourth Proportional to 195,712.32, 270,083.52 and 115,142.88

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Solution

The fourth proportional to 195,712.32, 270,083.52 and 115,142.88 is: 158,897.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,712.32 : 270,083.52 = 115,142.88 : x
  2. Step 2: Convert to fraction form
    195,712.32/270,083.52 = 115,142.88/x
  3. Step 3: Cross multiply
    195,712.32x = 270,083.52 × 115,142.88
  4. Step 4: Simplify right side
    195,712.32x = 31,098,194,333.34
  5. Step 5: Solve for x
    x = 31,098,194,333.34/195,712.32
  6. Step 6: Final answer
    x = 158,897.48

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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.