Home / 101,869.43-140,573.16-56,545.25

Finding the Fourth Proportional to 101,869.43, 140,573.16 and 56,545.25

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Solution

The fourth proportional to 101,869.43, 140,573.16 and 56,545.25 is: 78,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,869.43 : 140,573.16 = 56,545.25 : x
  2. Step 2: Convert to fraction form
    101,869.43/140,573.16 = 56,545.25/x
  3. Step 3: Cross multiply
    101,869.43x = 140,573.16 × 56,545.25
  4. Step 4: Simplify right side
    101,869.43x = 7,948,743,772.62
  5. Step 5: Solve for x
    x = 7,948,743,772.62/101,869.43
  6. Step 6: Final answer
    x = 78,028.75

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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.