Home / 159,515.36-219,961.92-143,449.12

Finding the Fourth Proportional to 159,515.36, 219,961.92 and 143,449.12

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Solution

The fourth proportional to 159,515.36, 219,961.92 and 143,449.12 is: 197,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,515.36 : 219,961.92 = 143,449.12 : x
  2. Step 2: Convert to fraction form
    159,515.36/219,961.92 = 143,449.12/x
  3. Step 3: Cross multiply
    159,515.36x = 219,961.92 × 143,449.12
  4. Step 4: Simplify right side
    159,515.36x = 31,553,343,433.11
  5. Step 5: Solve for x
    x = 31,553,343,433.11/159,515.36
  6. Step 6: Final answer
    x = 197,807.55

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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.