Home / 140,889.28-194,430.92-79,630.60

Finding the Fourth Proportional to 140,889.28, 194,430.92 and 79,630.60

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Solution

The fourth proportional to 140,889.28, 194,430.92 and 79,630.60 is: 109,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,889.28 : 194,430.92 = 79,630.60 : x
  2. Step 2: Convert to fraction form
    140,889.28/194,430.92 = 79,630.60/x
  3. Step 3: Cross multiply
    140,889.28x = 194,430.92 × 79,630.60
  4. Step 4: Simplify right side
    140,889.28x = 15,482,650,818.15
  5. Step 5: Solve for x
    x = 15,482,650,818.15/140,889.28
  6. Step 6: Final answer
    x = 109,892.33

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1.5x scale

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.