Home / 103,833.20-155,531.10-84,150.20

Finding the Fourth Proportional to 103,833.20, 155,531.10 and 84,150.20

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Solution

The fourth proportional to 103,833.20, 155,531.10 and 84,150.20 is: 126,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,833.20 : 155,531.10 = 84,150.20 : x
  2. Step 2: Convert to fraction form
    103,833.20/155,531.10 = 84,150.20/x
  3. Step 3: Cross multiply
    103,833.20x = 155,531.10 × 84,150.20
  4. Step 4: Simplify right side
    103,833.20x = 13,087,973,171.22
  5. Step 5: Solve for x
    x = 13,087,973,171.22/103,833.20
  6. Step 6: Final answer
    x = 126,048.06

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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.