Home / 124,286.22-186,456.78-45,400.32

Finding the Fourth Proportional to 124,286.22, 186,456.78 and 45,400.32

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Solution

The fourth proportional to 124,286.22, 186,456.78 and 45,400.32 is: 68,110.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,286.22 : 186,456.78 = 45,400.32 : x
  2. Step 2: Convert to fraction form
    124,286.22/186,456.78 = 45,400.32/x
  3. Step 3: Cross multiply
    124,286.22x = 186,456.78 × 45,400.32
  4. Step 4: Simplify right side
    124,286.22x = 8,465,197,478.17
  5. Step 5: Solve for x
    x = 8,465,197,478.17/124,286.22
  6. Step 6: Final answer
    x = 68,110.51

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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.