Home / 101,869.20-140,578.92-56,545.92

Finding the Fourth Proportional to 101,869.20, 140,578.92 and 56,545.92

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Solution

The fourth proportional to 101,869.20, 140,578.92 and 56,545.92 is: 78,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,869.20 : 140,578.92 = 56,545.92 : x
  2. Step 2: Convert to fraction form
    101,869.20/140,578.92 = 56,545.92/x
  3. Step 3: Cross multiply
    101,869.20x = 140,578.92 × 56,545.92
  4. Step 4: Simplify right side
    101,869.20x = 7,949,164,364.01
  5. Step 5: Solve for x
    x = 7,949,164,364.01/101,869.20
  6. Step 6: Final answer
    x = 78,033.05

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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.