Home / 195,712.80-270,079.08-115,145.51

Finding the Fourth Proportional to 195,712.80, 270,079.08 and 115,145.51

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Solution

The fourth proportional to 195,712.80, 270,079.08 and 115,145.51 is: 158,898.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,712.80 : 270,079.08 = 115,145.51 : x
  2. Step 2: Convert to fraction form
    195,712.80/270,079.08 = 115,145.51/x
  3. Step 3: Cross multiply
    195,712.80x = 270,079.08 × 115,145.51
  4. Step 4: Simplify right side
    195,712.80x = 31,098,393,406.93
  5. Step 5: Solve for x
    x = 31,098,393,406.93/195,712.80
  6. Step 6: Final answer
    x = 158,898.11

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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.