Home / 179,878.12-269,948.80-86,449.48

Finding the Fourth Proportional to 179,878.12, 269,948.80 and 86,449.48

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Solution

The fourth proportional to 179,878.12, 269,948.80 and 86,449.48 is: 129,737.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,878.12 : 269,948.80 = 86,449.48 : x
  2. Step 2: Convert to fraction form
    179,878.12/269,948.80 = 86,449.48/x
  3. Step 3: Cross multiply
    179,878.12x = 269,948.80 × 86,449.48
  4. Step 4: Simplify right side
    179,878.12x = 23,336,933,386.62
  5. Step 5: Solve for x
    x = 23,336,933,386.62/179,878.12
  6. Step 6: Final answer
    x = 129,737.48

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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.