Home / 123,884.49-170,919.94-69,428.71

Finding the Fourth Proportional to 123,884.49, 170,919.94 and 69,428.71

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Solution

The fourth proportional to 123,884.49, 170,919.94 and 69,428.71 is: 95,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,884.49 : 170,919.94 = 69,428.71 : x
  2. Step 2: Convert to fraction form
    123,884.49/170,919.94 = 69,428.71/x
  3. Step 3: Cross multiply
    123,884.49x = 170,919.94 × 69,428.71
  4. Step 4: Simplify right side
    123,884.49x = 11,866,750,762.79
  5. Step 5: Solve for x
    x = 11,866,750,762.79/123,884.49
  6. Step 6: Final answer
    x = 95,788.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.