Home / 124,121.43-186,069.29-45,217.71

Finding the Fourth Proportional to 124,121.43, 186,069.29 and 45,217.71

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Solution

The fourth proportional to 124,121.43, 186,069.29 and 45,217.71 is: 67,785.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,121.43 : 186,069.29 = 45,217.71 : x
  2. Step 2: Convert to fraction form
    124,121.43/186,069.29 = 45,217.71/x
  3. Step 3: Cross multiply
    124,121.43x = 186,069.29 × 45,217.71
  4. Step 4: Simplify right side
    124,121.43x = 8,413,626,969.04
  5. Step 5: Solve for x
    x = 8,413,626,969.04/124,121.43
  6. Step 6: Final answer
    x = 67,785.45

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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.