Home / 140,757.12-194,242.68-77,094.72

Finding the Fourth Proportional to 140,757.12, 194,242.68 and 77,094.72

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Solution

The fourth proportional to 140,757.12, 194,242.68 and 77,094.72 is: 106,389.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,757.12 : 194,242.68 = 77,094.72 : x
  2. Step 2: Convert to fraction form
    140,757.12/194,242.68 = 77,094.72/x
  3. Step 3: Cross multiply
    140,757.12x = 194,242.68 × 77,094.72
  4. Step 4: Simplify right side
    140,757.12x = 14,975,085,026.65
  5. Step 5: Solve for x
    x = 14,975,085,026.65/140,757.12
  6. Step 6: Final answer
    x = 106,389.54

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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.