Home / 195,712.89-270,079.21-115,145.60

Finding the Fourth Proportional to 195,712.89, 270,079.21 and 115,145.60

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Solution

The fourth proportional to 195,712.89, 270,079.21 and 115,145.60 is: 158,898.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,712.89 : 270,079.21 = 115,145.60 : x
  2. Step 2: Convert to fraction form
    195,712.89/270,079.21 = 115,145.60/x
  3. Step 3: Cross multiply
    195,712.89x = 270,079.21 × 115,145.60
  4. Step 4: Simplify right side
    195,712.89x = 31,098,432,682.98
  5. Step 5: Solve for x
    x = 31,098,432,682.98/195,712.89
  6. Step 6: Final answer
    x = 158,898.24

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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.