Home / 103,754.56-155,680.44-51,135.36

Finding the Fourth Proportional to 103,754.56, 155,680.44 and 51,135.36

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Solution

The fourth proportional to 103,754.56, 155,680.44 and 51,135.36 is: 76,726.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,754.56 : 155,680.44 = 51,135.36 : x
  2. Step 2: Convert to fraction form
    103,754.56/155,680.44 = 51,135.36/x
  3. Step 3: Cross multiply
    103,754.56x = 155,680.44 × 51,135.36
  4. Step 4: Simplify right side
    103,754.56x = 7,960,775,344.36
  5. Step 5: Solve for x
    x = 7,960,775,344.36/103,754.56
  6. Step 6: Final answer
    x = 76,726.99

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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.