Home / 140,808.27-194,315.84-76,278.17

Finding the Fourth Proportional to 140,808.27, 194,315.84 and 76,278.17

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Solution

The fourth proportional to 140,808.27, 194,315.84 and 76,278.17 is: 105,264.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,808.27 : 194,315.84 = 76,278.17 : x
  2. Step 2: Convert to fraction form
    140,808.27/194,315.84 = 76,278.17/x
  3. Step 3: Cross multiply
    140,808.27x = 194,315.84 × 76,278.17
  4. Step 4: Simplify right side
    140,808.27x = 14,822,057,496.72
  5. Step 5: Solve for x
    x = 14,822,057,496.72/140,808.27
  6. Step 6: Final answer
    x = 105,264.11

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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.