Home / 127,734.71-191,625.30-43,490.56

Finding the Fourth Proportional to 127,734.71, 191,625.30 and 43,490.56

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Solution

The fourth proportional to 127,734.71, 191,625.30 and 43,490.56 is: 65,243.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,734.71 : 191,625.30 = 43,490.56 : x
  2. Step 2: Convert to fraction form
    127,734.71/191,625.30 = 43,490.56/x
  3. Step 3: Cross multiply
    127,734.71x = 191,625.30 × 43,490.56
  4. Step 4: Simplify right side
    127,734.71x = 8,333,890,649.04
  5. Step 5: Solve for x
    x = 8,333,890,649.04/127,734.71
  6. Step 6: Final answer
    x = 65,243.75

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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.