Home / 140,955.72-194,520.60-77,295.12

Finding the Fourth Proportional to 140,955.72, 194,520.60 and 77,295.12

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Solution

The fourth proportional to 140,955.72, 194,520.60 and 77,295.12 is: 106,668.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,955.72 : 194,520.60 = 77,295.12 : x
  2. Step 2: Convert to fraction form
    140,955.72/194,520.60 = 77,295.12/x
  3. Step 3: Cross multiply
    140,955.72x = 194,520.60 × 77,295.12
  4. Step 4: Simplify right side
    140,955.72x = 15,035,493,119.47
  5. Step 5: Solve for x
    x = 15,035,493,119.47/140,955.72
  6. Step 6: Final answer
    x = 106,668.20

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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.