Home / 140,389.19-193,736.61-76,726.97

Finding the Fourth Proportional to 140,389.19, 193,736.61 and 76,726.97

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Solution

The fourth proportional to 140,389.19, 193,736.61 and 76,726.97 is: 105,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,389.19 : 193,736.61 = 76,726.97 : x
  2. Step 2: Convert to fraction form
    140,389.19/193,736.61 = 76,726.97/x
  3. Step 3: Cross multiply
    140,389.19x = 193,736.61 × 76,726.97
  4. Step 4: Simplify right side
    140,389.19x = 14,864,823,063.37
  5. Step 5: Solve for x
    x = 14,864,823,063.37/140,389.19
  6. Step 6: Final answer
    x = 105,882.96

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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.