Home / 107,587.20-161,359.20-51,427.20

Finding the Fourth Proportional to 107,587.20, 161,359.20 and 51,427.20

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Solution

The fourth proportional to 107,587.20, 161,359.20 and 51,427.20 is: 77,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,587.20 : 161,359.20 = 51,427.20 : x
  2. Step 2: Convert to fraction form
    107,587.20/161,359.20 = 51,427.20/x
  3. Step 3: Cross multiply
    107,587.20x = 161,359.20 × 51,427.20
  4. Step 4: Simplify right side
    107,587.20x = 8,298,251,850.24
  5. Step 5: Solve for x
    x = 8,298,251,850.24/107,587.20
  6. Step 6: Final answer
    x = 77,130.48

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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.