Home / 103,976.22-155,964.30-40,826.10

Finding the Fourth Proportional to 103,976.22, 155,964.30 and 40,826.10

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Solution

The fourth proportional to 103,976.22, 155,964.30 and 40,826.10 is: 61,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,976.22 : 155,964.30 = 40,826.10 : x
  2. Step 2: Convert to fraction form
    103,976.22/155,964.30 = 40,826.10/x
  3. Step 3: Cross multiply
    103,976.22x = 155,964.30 × 40,826.10
  4. Step 4: Simplify right side
    103,976.22x = 6,367,413,328.41
  5. Step 5: Solve for x
    x = 6,367,413,328.41/103,976.22
  6. Step 6: Final answer
    x = 61,239.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.