Home / 195,712.86-270,079.16-115,145.57

Finding the Fourth Proportional to 195,712.86, 270,079.16 and 115,145.57

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Solution

The fourth proportional to 195,712.86, 270,079.16 and 115,145.57 is: 158,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,712.86 : 270,079.16 = 115,145.57 : x
  2. Step 2: Convert to fraction form
    195,712.86/270,079.16 = 115,145.57/x
  3. Step 3: Cross multiply
    195,712.86x = 270,079.16 × 115,145.57
  4. Step 4: Simplify right side
    195,712.86x = 31,098,416,897.20
  5. Step 5: Solve for x
    x = 31,098,416,897.20/195,712.86
  6. Step 6: Final answer
    x = 158,898.18

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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.