Home / 109,840.10-164,630.55-82,105.70

Finding the Fourth Proportional to 109,840.10, 164,630.55 and 82,105.70

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Solution

The fourth proportional to 109,840.10, 164,630.55 and 82,105.70 is: 123,061.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,840.10 : 164,630.55 = 82,105.70 : x
  2. Step 2: Convert to fraction form
    109,840.10/164,630.55 = 82,105.70/x
  3. Step 3: Cross multiply
    109,840.10x = 164,630.55 × 82,105.70
  4. Step 4: Simplify right side
    109,840.10x = 13,517,106,549.14
  5. Step 5: Solve for x
    x = 13,517,106,549.14/109,840.10
  6. Step 6: Final answer
    x = 123,061.67

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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.