Home / 107,456.20-161,184.30-54,312.10

Finding the Fourth Proportional to 107,456.20, 161,184.30 and 54,312.10

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Solution

The fourth proportional to 107,456.20, 161,184.30 and 54,312.10 is: 81,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,456.20 : 161,184.30 = 54,312.10 : x
  2. Step 2: Convert to fraction form
    107,456.20/161,184.30 = 54,312.10/x
  3. Step 3: Cross multiply
    107,456.20x = 161,184.30 × 54,312.10
  4. Step 4: Simplify right side
    107,456.20x = 8,754,257,820.03
  5. Step 5: Solve for x
    x = 8,754,257,820.03/107,456.20
  6. Step 6: Final answer
    x = 81,468.15

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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.