Home / 107,972.80-161,886.30-57,380.20

Finding the Fourth Proportional to 107,972.80, 161,886.30 and 57,380.20

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Solution

The fourth proportional to 107,972.80, 161,886.30 and 57,380.20 is: 86,031.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,972.80 : 161,886.30 = 57,380.20 : x
  2. Step 2: Convert to fraction form
    107,972.80/161,886.30 = 57,380.20/x
  3. Step 3: Cross multiply
    107,972.80x = 161,886.30 × 57,380.20
  4. Step 4: Simplify right side
    107,972.80x = 9,289,068,271.26
  5. Step 5: Solve for x
    x = 9,289,068,271.26/107,972.80
  6. Step 6: Final answer
    x = 86,031.56

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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.