Home / 100,310.01-138,429.36-60,025.47

Finding the Fourth Proportional to 100,310.01, 138,429.36 and 60,025.47

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Solution

The fourth proportional to 100,310.01, 138,429.36 and 60,025.47 is: 82,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,310.01 : 138,429.36 = 60,025.47 : x
  2. Step 2: Convert to fraction form
    100,310.01/138,429.36 = 60,025.47/x
  3. Step 3: Cross multiply
    100,310.01x = 138,429.36 × 60,025.47
  4. Step 4: Simplify right side
    100,310.01x = 8,309,287,395.80
  5. Step 5: Solve for x
    x = 8,309,287,395.80/100,310.01
  6. Step 6: Final answer
    x = 82,836.07

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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.