Home / 126,872.20-190,337.10-74,254.60

Finding the Fourth Proportional to 126,872.20, 190,337.10 and 74,254.60

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Solution

The fourth proportional to 126,872.20, 190,337.10 and 74,254.60 is: 111,398.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,872.20 : 190,337.10 = 74,254.60 : x
  2. Step 2: Convert to fraction form
    126,872.20/190,337.10 = 74,254.60/x
  3. Step 3: Cross multiply
    126,872.20x = 190,337.10 × 74,254.60
  4. Step 4: Simplify right side
    126,872.20x = 14,133,405,225.66
  5. Step 5: Solve for x
    x = 14,133,405,225.66/126,872.20
  6. Step 6: Final answer
    x = 111,398.76

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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.