Home / 126,310.61-174,308.79-69,721.98

Finding the Fourth Proportional to 126,310.61, 174,308.79 and 69,721.98

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Solution

The fourth proportional to 126,310.61, 174,308.79 and 69,721.98 is: 96,216.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,310.61 : 174,308.79 = 69,721.98 : x
  2. Step 2: Convert to fraction form
    126,310.61/174,308.79 = 69,721.98/x
  3. Step 3: Cross multiply
    126,310.61x = 174,308.79 × 69,721.98
  4. Step 4: Simplify right side
    126,310.61x = 12,153,153,970.20
  5. Step 5: Solve for x
    x = 12,153,153,970.20/126,310.61
  6. Step 6: Final answer
    x = 96,216.42

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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.