Home / 122,721.28-184,084.19-38,479.56

Finding the Fourth Proportional to 122,721.28, 184,084.19 and 38,479.56

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Solution

The fourth proportional to 122,721.28, 184,084.19 and 38,479.56 is: 57,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,721.28 : 184,084.19 = 38,479.56 : x
  2. Step 2: Convert to fraction form
    122,721.28/184,084.19 = 38,479.56/x
  3. Step 3: Cross multiply
    122,721.28x = 184,084.19 × 38,479.56
  4. Step 4: Simplify right side
    122,721.28x = 7,083,478,112.19
  5. Step 5: Solve for x
    x = 7,083,478,112.19/122,721.28
  6. Step 6: Final answer
    x = 57,720.05

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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.