Home / 101,866.22-140,576.61-56,545.10

Finding the Fourth Proportional to 101,866.22, 140,576.61 and 56,545.10

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Solution

The fourth proportional to 101,866.22, 140,576.61 and 56,545.10 is: 78,032.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,866.22 : 140,576.61 = 56,545.10 : x
  2. Step 2: Convert to fraction form
    101,866.22/140,576.61 = 56,545.10/x
  3. Step 3: Cross multiply
    101,866.22x = 140,576.61 × 56,545.10
  4. Step 4: Simplify right side
    101,866.22x = 7,948,918,470.11
  5. Step 5: Solve for x
    x = 7,948,918,470.11/101,866.22
  6. Step 6: Final answer
    x = 78,032.92

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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.