Home / 140,727.34-194,194.83-77,065.90

Finding the Fourth Proportional to 140,727.34, 194,194.83 and 77,065.90

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Solution

The fourth proportional to 140,727.34, 194,194.83 and 77,065.90 is: 106,346.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,727.34 : 194,194.83 = 77,065.90 : x
  2. Step 2: Convert to fraction form
    140,727.34/194,194.83 = 77,065.90/x
  3. Step 3: Cross multiply
    140,727.34x = 194,194.83 × 77,065.90
  4. Step 4: Simplify right side
    140,727.34x = 14,965,799,349.30
  5. Step 5: Solve for x
    x = 14,965,799,349.30/140,727.34
  6. Step 6: Final answer
    x = 106,346.07

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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.