Home / 70,134.12-105,227.10-25,789.86

Finding the Fourth Proportional to 70,134.12, 105,227.10 and 25,789.86

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Solution

The fourth proportional to 70,134.12, 105,227.10 and 25,789.86 is: 38,694.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,134.12 : 105,227.10 = 25,789.86 : x
  2. Step 2: Convert to fraction form
    70,134.12/105,227.10 = 25,789.86/x
  3. Step 3: Cross multiply
    70,134.12x = 105,227.10 × 25,789.86
  4. Step 4: Simplify right side
    70,134.12x = 2,713,792,177.21
  5. Step 5: Solve for x
    x = 2,713,792,177.21/70,134.12
  6. Step 6: Final answer
    x = 38,694.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.