Home / 107,982.80-161,901.30-57,390.20

Finding the Fourth Proportional to 107,982.80, 161,901.30 and 57,390.20

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Solution

The fourth proportional to 107,982.80, 161,901.30 and 57,390.20 is: 86,046.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,982.80 : 161,901.30 = 57,390.20 : x
  2. Step 2: Convert to fraction form
    107,982.80/161,901.30 = 57,390.20/x
  3. Step 3: Cross multiply
    107,982.80x = 161,901.30 × 57,390.20
  4. Step 4: Simplify right side
    107,982.80x = 9,291,547,987.26
  5. Step 5: Solve for x
    x = 9,291,547,987.26/107,982.80
  6. Step 6: Final answer
    x = 86,046.56

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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.