Home / 125,982.65-173,856.29-68,621.80

Finding the Fourth Proportional to 125,982.65, 173,856.29 and 68,621.80

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Solution

The fourth proportional to 125,982.65, 173,856.29 and 68,621.80 is: 94,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,982.65 : 173,856.29 = 68,621.80 : x
  2. Step 2: Convert to fraction form
    125,982.65/173,856.29 = 68,621.80/x
  3. Step 3: Cross multiply
    125,982.65x = 173,856.29 × 68,621.80
  4. Step 4: Simplify right side
    125,982.65x = 11,930,331,561.12
  5. Step 5: Solve for x
    x = 11,930,331,561.12/125,982.65
  6. Step 6: Final answer
    x = 94,698.21

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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.