Home / 126,068.67-173,940.21-87,785.19

Finding the Fourth Proportional to 126,068.67, 173,940.21 and 87,785.19

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Solution

The fourth proportional to 126,068.67, 173,940.21 and 87,785.19 is: 121,119.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,068.67 : 173,940.21 = 87,785.19 : x
  2. Step 2: Convert to fraction form
    126,068.67/173,940.21 = 87,785.19/x
  3. Step 3: Cross multiply
    126,068.67x = 173,940.21 × 87,785.19
  4. Step 4: Simplify right side
    126,068.67x = 15,269,374,383.49
  5. Step 5: Solve for x
    x = 15,269,374,383.49/126,068.67
  6. Step 6: Final answer
    x = 121,119.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.