Home / 196,689.81-271,391.25-115,002.33

Finding the Fourth Proportional to 196,689.81, 271,391.25 and 115,002.33

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Solution

The fourth proportional to 196,689.81, 271,391.25 and 115,002.33 is: 158,679.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,689.81 : 271,391.25 = 115,002.33 : x
  2. Step 2: Convert to fraction form
    196,689.81/271,391.25 = 115,002.33/x
  3. Step 3: Cross multiply
    196,689.81x = 271,391.25 × 115,002.33
  4. Step 4: Simplify right side
    196,689.81x = 31,210,626,091.61
  5. Step 5: Solve for x
    x = 31,210,626,091.61/196,689.81
  6. Step 6: Final answer
    x = 158,679.43

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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.