Home / 119,721.57-179,583.25-53,143.80

Finding the Fourth Proportional to 119,721.57, 179,583.25 and 53,143.80

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Solution

The fourth proportional to 119,721.57, 179,583.25 and 53,143.80 is: 79,716.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,721.57 : 179,583.25 = 53,143.80 : x
  2. Step 2: Convert to fraction form
    119,721.57/179,583.25 = 53,143.80/x
  3. Step 3: Cross multiply
    119,721.57x = 179,583.25 × 53,143.80
  4. Step 4: Simplify right side
    119,721.57x = 9,543,735,157.71
  5. Step 5: Solve for x
    x = 9,543,735,157.71/119,721.57
  6. Step 6: Final answer
    x = 79,716.09

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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.