Home / 126,661.24-190,139.10-74,108.44

Finding the Fourth Proportional to 126,661.24, 190,139.10 and 74,108.44

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Solution

The fourth proportional to 126,661.24, 190,139.10 and 74,108.44 is: 111,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,661.24 : 190,139.10 = 74,108.44 : x
  2. Step 2: Convert to fraction form
    126,661.24/190,139.10 = 74,108.44/x
  3. Step 3: Cross multiply
    126,661.24x = 190,139.10 × 74,108.44
  4. Step 4: Simplify right side
    126,661.24x = 14,090,912,084.00
  5. Step 5: Solve for x
    x = 14,090,912,084.00/126,661.24
  6. Step 6: Final answer
    x = 111,248.81

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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.