Home / 140,388.56-193,735.76-76,726.34

Finding the Fourth Proportional to 140,388.56, 193,735.76 and 76,726.34

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Solution

The fourth proportional to 140,388.56, 193,735.76 and 76,726.34 is: 105,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,388.56 : 193,735.76 = 76,726.34 : x
  2. Step 2: Convert to fraction form
    140,388.56/193,735.76 = 76,726.34/x
  3. Step 3: Cross multiply
    140,388.56x = 193,735.76 × 76,726.34
  4. Step 4: Simplify right side
    140,388.56x = 14,864,635,791.92
  5. Step 5: Solve for x
    x = 14,864,635,791.92/140,388.56
  6. Step 6: Final answer
    x = 105,882.10

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1.5x scale

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.