Home / 81,616.32-122,313.78-73,423.26

Finding the Fourth Proportional to 81,616.32, 122,313.78 and 73,423.26

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Solution

The fourth proportional to 81,616.32, 122,313.78 and 73,423.26 is: 110,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,616.32 : 122,313.78 = 73,423.26 : x
  2. Step 2: Convert to fraction form
    81,616.32/122,313.78 = 73,423.26/x
  3. Step 3: Cross multiply
    81,616.32x = 122,313.78 × 73,423.26
  4. Step 4: Simplify right side
    81,616.32x = 8,980,676,470.52
  5. Step 5: Solve for x
    x = 8,980,676,470.52/81,616.32
  6. Step 6: Final answer
    x = 110,035.30

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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.