Home / 138,932.34-191,726.93-75,270.14

Finding the Fourth Proportional to 138,932.34, 191,726.93 and 75,270.14

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Solution

The fourth proportional to 138,932.34, 191,726.93 and 75,270.14 is: 103,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,932.34 : 191,726.93 = 75,270.14 : x
  2. Step 2: Convert to fraction form
    138,932.34/191,726.93 = 75,270.14/x
  3. Step 3: Cross multiply
    138,932.34x = 191,726.93 × 75,270.14
  4. Step 4: Simplify right side
    138,932.34x = 14,431,311,527.88
  5. Step 5: Solve for x
    x = 14,431,311,527.88/138,932.34
  6. Step 6: Final answer
    x = 103,872.95

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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.