Home / 101,782.11-140,367.29-63,545.15

Finding the Fourth Proportional to 101,782.11, 140,367.29 and 63,545.15

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Solution

The fourth proportional to 101,782.11, 140,367.29 and 63,545.15 is: 87,634.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,782.11 : 140,367.29 = 63,545.15 : x
  2. Step 2: Convert to fraction form
    101,782.11/140,367.29 = 63,545.15/x
  3. Step 3: Cross multiply
    101,782.11x = 140,367.29 × 63,545.15
  4. Step 4: Simplify right side
    101,782.11x = 8,919,660,498.14
  5. Step 5: Solve for x
    x = 8,919,660,498.14/101,782.11
  6. Step 6: Final answer
    x = 87,634.86

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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.