Home / 126,979.18-190,301.64-70,845.70

Finding the Fourth Proportional to 126,979.18, 190,301.64 and 70,845.70

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Solution

The fourth proportional to 126,979.18, 190,301.64 and 70,845.70 is: 106,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,979.18 : 190,301.64 = 70,845.70 : x
  2. Step 2: Convert to fraction form
    126,979.18/190,301.64 = 70,845.70/x
  3. Step 3: Cross multiply
    126,979.18x = 190,301.64 × 70,845.70
  4. Step 4: Simplify right side
    126,979.18x = 13,482,052,896.95
  5. Step 5: Solve for x
    x = 13,482,052,896.95/126,979.18
  6. Step 6: Final answer
    x = 106,175.30

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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.