Home / 109,393.20-150,963.84-64,061.28

Finding the Fourth Proportional to 109,393.20, 150,963.84 and 64,061.28

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Solution

The fourth proportional to 109,393.20, 150,963.84 and 64,061.28 is: 88,405.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,393.20 : 150,963.84 = 64,061.28 : x
  2. Step 2: Convert to fraction form
    109,393.20/150,963.84 = 64,061.28/x
  3. Step 3: Cross multiply
    109,393.20x = 150,963.84 × 64,061.28
  4. Step 4: Simplify right side
    109,393.20x = 9,670,936,824.12
  5. Step 5: Solve for x
    x = 9,670,936,824.12/109,393.20
  6. Step 6: Final answer
    x = 88,405.28

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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.