Home / 159,170.72-219,531.11-98,707.19

Finding the Fourth Proportional to 159,170.72, 219,531.11 and 98,707.19

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Solution

The fourth proportional to 159,170.72, 219,531.11 and 98,707.19 is: 136,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,170.72 : 219,531.11 = 98,707.19 : x
  2. Step 2: Convert to fraction form
    159,170.72/219,531.11 = 98,707.19/x
  3. Step 3: Cross multiply
    159,170.72x = 219,531.11 × 98,707.19
  4. Step 4: Simplify right side
    159,170.72x = 21,669,297,394.49
  5. Step 5: Solve for x
    x = 21,669,297,394.49/159,170.72
  6. Step 6: Final answer
    x = 136,138.72

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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.