Home / 119,429.73-179,175.38-85,734.81

Finding the Fourth Proportional to 119,429.73, 179,175.38 and 85,734.81

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Solution

The fourth proportional to 119,429.73, 179,175.38 and 85,734.81 is: 128,624.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,429.73 : 179,175.38 = 85,734.81 : x
  2. Step 2: Convert to fraction form
    119,429.73/179,175.38 = 85,734.81/x
  3. Step 3: Cross multiply
    119,429.73x = 179,175.38 × 85,734.81
  4. Step 4: Simplify right side
    119,429.73x = 15,361,566,732.30
  5. Step 5: Solve for x
    x = 15,361,566,732.30/119,429.73
  6. Step 6: Final answer
    x = 128,624.31

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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.