Home / 121,878.56-182,806.32-38,757.92

Finding the Fourth Proportional to 121,878.56, 182,806.32 and 38,757.92

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Solution

The fourth proportional to 121,878.56, 182,806.32 and 38,757.92 is: 58,133.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,878.56 : 182,806.32 = 38,757.92 : x
  2. Step 2: Convert to fraction form
    121,878.56/182,806.32 = 38,757.92/x
  3. Step 3: Cross multiply
    121,878.56x = 182,806.32 × 38,757.92
  4. Step 4: Simplify right side
    121,878.56x = 7,085,192,726.05
  5. Step 5: Solve for x
    x = 7,085,192,726.05/121,878.56
  6. Step 6: Final answer
    x = 58,133.22

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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.