Home / 143,721.06-198,337.13-82,477.23

Finding the Fourth Proportional to 143,721.06, 198,337.13 and 82,477.23

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Solution

The fourth proportional to 143,721.06, 198,337.13 and 82,477.23 is: 113,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,721.06 : 198,337.13 = 82,477.23 : x
  2. Step 2: Convert to fraction form
    143,721.06/198,337.13 = 82,477.23/x
  3. Step 3: Cross multiply
    143,721.06x = 198,337.13 × 82,477.23
  4. Step 4: Simplify right side
    143,721.06x = 16,358,296,676.16
  5. Step 5: Solve for x
    x = 16,358,296,676.16/143,721.06
  6. Step 6: Final answer
    x = 113,819.76

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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.