Home / 140,783.04-194,279.76-77,119.56

Finding the Fourth Proportional to 140,783.04, 194,279.76 and 77,119.56

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Solution

The fourth proportional to 140,783.04, 194,279.76 and 77,119.56 is: 106,424.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,783.04 : 194,279.76 = 77,119.56 : x
  2. Step 2: Convert to fraction form
    140,783.04/194,279.76 = 77,119.56/x
  3. Step 3: Cross multiply
    140,783.04x = 194,279.76 × 77,119.56
  4. Step 4: Simplify right side
    140,783.04x = 14,982,769,608.11
  5. Step 5: Solve for x
    x = 14,982,769,608.11/140,783.04
  6. Step 6: Final answer
    x = 106,424.54

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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.