Home / 151,083.20-226,799.40-81,099.20

Finding the Fourth Proportional to 151,083.20, 226,799.40 and 81,099.20

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Solution

The fourth proportional to 151,083.20, 226,799.40 and 81,099.20 is: 121,742.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,083.20 : 226,799.40 = 81,099.20 : x
  2. Step 2: Convert to fraction form
    151,083.20/226,799.40 = 81,099.20/x
  3. Step 3: Cross multiply
    151,083.20x = 226,799.40 × 81,099.20
  4. Step 4: Simplify right side
    151,083.20x = 18,393,249,900.48
  5. Step 5: Solve for x
    x = 18,393,249,900.48/151,083.20
  6. Step 6: Final answer
    x = 121,742.52

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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.