Home / 123,579.89-170,545.94-69,867.17

Finding the Fourth Proportional to 123,579.89, 170,545.94 and 69,867.17

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Solution

The fourth proportional to 123,579.89, 170,545.94 and 69,867.17 is: 96,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,579.89 : 170,545.94 = 69,867.17 : x
  2. Step 2: Convert to fraction form
    123,579.89/170,545.94 = 69,867.17/x
  3. Step 3: Cross multiply
    123,579.89x = 170,545.94 × 69,867.17
  4. Step 4: Simplify right side
    123,579.89x = 11,915,562,182.79
  5. Step 5: Solve for x
    x = 11,915,562,182.79/123,579.89
  6. Step 6: Final answer
    x = 96,419.91

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1.5x scale

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.