Home / 107,927.90-161,719.05-68,414.30

Finding the Fourth Proportional to 107,927.90, 161,719.05 and 68,414.30

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Solution

The fourth proportional to 107,927.90, 161,719.05 and 68,414.30 is: 102,511.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,927.90 : 161,719.05 = 68,414.30 : x
  2. Step 2: Convert to fraction form
    107,927.90/161,719.05 = 68,414.30/x
  3. Step 3: Cross multiply
    107,927.90x = 161,719.05 × 68,414.30
  4. Step 4: Simplify right side
    107,927.90x = 11,063,895,602.42
  5. Step 5: Solve for x
    x = 11,063,895,602.42/107,927.90
  6. Step 6: Final answer
    x = 102,511.91

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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.