Home / 123,947.72-171,047.78-67,359.10

Finding the Fourth Proportional to 123,947.72, 171,047.78 and 67,359.10

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Solution

The fourth proportional to 123,947.72, 171,047.78 and 67,359.10 is: 92,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,947.72 : 171,047.78 = 67,359.10 : x
  2. Step 2: Convert to fraction form
    123,947.72/171,047.78 = 67,359.10/x
  3. Step 3: Cross multiply
    123,947.72x = 171,047.78 × 67,359.10
  4. Step 4: Simplify right side
    123,947.72x = 11,521,624,517.80
  5. Step 5: Solve for x
    x = 11,521,624,517.80/123,947.72
  6. Step 6: Final answer
    x = 92,955.52

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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.