Home / 126,310.36-174,309.72-69,721.72

Finding the Fourth Proportional to 126,310.36, 174,309.72 and 69,721.72

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Solution

The fourth proportional to 126,310.36, 174,309.72 and 69,721.72 is: 96,216.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,310.36 : 174,309.72 = 69,721.72 : x
  2. Step 2: Convert to fraction form
    126,310.36/174,309.72 = 69,721.72/x
  3. Step 3: Cross multiply
    126,310.36x = 174,309.72 × 69,721.72
  4. Step 4: Simplify right side
    126,310.36x = 12,153,173,491.12
  5. Step 5: Solve for x
    x = 12,153,173,491.12/126,310.36
  6. Step 6: Final answer
    x = 96,216.76

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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.