Home / 179,672.22-247,938.48-103,138.16

Finding the Fourth Proportional to 179,672.22, 247,938.48 and 103,138.16

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Solution

The fourth proportional to 179,672.22, 247,938.48 and 103,138.16 is: 142,325.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,672.22 : 247,938.48 = 103,138.16 : x
  2. Step 2: Convert to fraction form
    179,672.22/247,938.48 = 103,138.16/x
  3. Step 3: Cross multiply
    179,672.22x = 247,938.48 × 103,138.16
  4. Step 4: Simplify right side
    179,672.22x = 25,571,917,380.70
  5. Step 5: Solve for x
    x = 25,571,917,380.70/179,672.22
  6. Step 6: Final answer
    x = 142,325.38

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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.