Home / 185,422.21-278,145.05-71,624.29

Finding the Fourth Proportional to 185,422.21, 278,145.05 and 71,624.29

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Solution

The fourth proportional to 185,422.21, 278,145.05 and 71,624.29 is: 107,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,422.21 : 278,145.05 = 71,624.29 : x
  2. Step 2: Convert to fraction form
    185,422.21/278,145.05 = 71,624.29/x
  3. Step 3: Cross multiply
    185,422.21x = 278,145.05 × 71,624.29
  4. Step 4: Simplify right side
    185,422.21x = 19,921,941,723.26
  5. Step 5: Solve for x
    x = 19,921,941,723.26/185,422.21
  6. Step 6: Final answer
    x = 107,440.97

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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.