Home / 126,917.70-190,246.95-74,300.10

Finding the Fourth Proportional to 126,917.70, 190,246.95 and 74,300.10

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Solution

The fourth proportional to 126,917.70, 190,246.95 and 74,300.10 is: 111,374.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,917.70 : 190,246.95 = 74,300.10 : x
  2. Step 2: Convert to fraction form
    126,917.70/190,246.95 = 74,300.10/x
  3. Step 3: Cross multiply
    126,917.70x = 190,246.95 × 74,300.10
  4. Step 4: Simplify right side
    126,917.70x = 14,135,367,409.70
  5. Step 5: Solve for x
    x = 14,135,367,409.70/126,917.70
  6. Step 6: Final answer
    x = 111,374.28

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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.