Home / 119,920.89-179,821.08-39,930.58

Finding the Fourth Proportional to 119,920.89, 179,821.08 and 39,930.58

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Solution

The fourth proportional to 119,920.89, 179,821.08 and 39,930.58 is: 59,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,920.89 : 179,821.08 = 39,930.58 : x
  2. Step 2: Convert to fraction form
    119,920.89/179,821.08 = 39,930.58/x
  3. Step 3: Cross multiply
    119,920.89x = 179,821.08 × 39,930.58
  4. Step 4: Simplify right side
    119,920.89x = 7,180,359,121.52
  5. Step 5: Solve for x
    x = 7,180,359,121.52/119,920.89
  6. Step 6: Final answer
    x = 59,875.80

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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.