Home / 180,926.27-249,708.14-100,379.73

Finding the Fourth Proportional to 180,926.27, 249,708.14 and 100,379.73

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Solution

The fourth proportional to 180,926.27, 249,708.14 and 100,379.73 is: 138,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,926.27 : 249,708.14 = 100,379.73 : x
  2. Step 2: Convert to fraction form
    180,926.27/249,708.14 = 100,379.73/x
  3. Step 3: Cross multiply
    180,926.27x = 249,708.14 × 100,379.73
  4. Step 4: Simplify right side
    180,926.27x = 25,065,635,672.00
  5. Step 5: Solve for x
    x = 25,065,635,672.00/180,926.27
  6. Step 6: Final answer
    x = 138,540.61

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1.5x scale

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.