Home / 195,138.72-269,470.80-156,904.56

Finding the Fourth Proportional to 195,138.72, 269,470.80 and 156,904.56

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Solution

The fourth proportional to 195,138.72, 269,470.80 and 156,904.56 is: 216,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,138.72 : 269,470.80 = 156,904.56 : x
  2. Step 2: Convert to fraction form
    195,138.72/269,470.80 = 156,904.56/x
  3. Step 3: Cross multiply
    195,138.72x = 269,470.80 × 156,904.56
  4. Step 4: Simplify right side
    195,138.72x = 42,281,197,306.85
  5. Step 5: Solve for x
    x = 42,281,197,306.85/195,138.72
  6. Step 6: Final answer
    x = 216,672.52

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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.