Home / 140,721.74-194,198.28-77,058.44

Finding the Fourth Proportional to 140,721.74, 194,198.28 and 77,058.44

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Solution

The fourth proportional to 140,721.74, 194,198.28 and 77,058.44 is: 106,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,721.74 : 194,198.28 = 77,058.44 : x
  2. Step 2: Convert to fraction form
    140,721.74/194,198.28 = 77,058.44/x
  3. Step 3: Cross multiply
    140,721.74x = 194,198.28 × 77,058.44
  4. Step 4: Simplify right side
    140,721.74x = 14,964,616,507.48
  5. Step 5: Solve for x
    x = 14,964,616,507.48/140,721.74
  6. Step 6: Final answer
    x = 106,341.90

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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.