Home / 107,927.80-161,891.70-84,308.20

Finding the Fourth Proportional to 107,927.80, 161,891.70 and 84,308.20

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Solution

The fourth proportional to 107,927.80, 161,891.70 and 84,308.20 is: 126,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,927.80 : 161,891.70 = 84,308.20 : x
  2. Step 2: Convert to fraction form
    107,927.80/161,891.70 = 84,308.20/x
  3. Step 3: Cross multiply
    107,927.80x = 161,891.70 × 84,308.20
  4. Step 4: Simplify right side
    107,927.80x = 13,648,797,821.94
  5. Step 5: Solve for x
    x = 13,648,797,821.94/107,927.80
  6. Step 6: Final answer
    x = 126,462.30

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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.