Home / 109,105.20-163,571.40-59,857.20

Finding the Fourth Proportional to 109,105.20, 163,571.40 and 59,857.20

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Solution

The fourth proportional to 109,105.20, 163,571.40 and 59,857.20 is: 89,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,105.20 : 163,571.40 = 59,857.20 : x
  2. Step 2: Convert to fraction form
    109,105.20/163,571.40 = 59,857.20/x
  3. Step 3: Cross multiply
    109,105.20x = 163,571.40 × 59,857.20
  4. Step 4: Simplify right side
    109,105.20x = 9,790,926,004.08
  5. Step 5: Solve for x
    x = 9,790,926,004.08/109,105.20
  6. Step 6: Final answer
    x = 89,738.40

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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.