Home / 127,375.12-191,062.67-57,172.42

Finding the Fourth Proportional to 127,375.12, 191,062.67 and 57,172.42

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Solution

The fourth proportional to 127,375.12, 191,062.67 and 57,172.42 is: 85,758.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,375.12 : 191,062.67 = 57,172.42 : x
  2. Step 2: Convert to fraction form
    127,375.12/191,062.67 = 57,172.42/x
  3. Step 3: Cross multiply
    127,375.12x = 191,062.67 × 57,172.42
  4. Step 4: Simplify right side
    127,375.12x = 10,923,514,880.84
  5. Step 5: Solve for x
    x = 10,923,514,880.84/127,375.12
  6. Step 6: Final answer
    x = 85,758.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.