Home / 109,635.46-151,292.64-68,821.55

Finding the Fourth Proportional to 109,635.46, 151,292.64 and 68,821.55

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Solution

The fourth proportional to 109,635.46, 151,292.64 and 68,821.55 is: 94,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,635.46 : 151,292.64 = 68,821.55 : x
  2. Step 2: Convert to fraction form
    109,635.46/151,292.64 = 68,821.55/x
  3. Step 3: Cross multiply
    109,635.46x = 151,292.64 × 68,821.55
  4. Step 4: Simplify right side
    109,635.46x = 10,412,194,057.36
  5. Step 5: Solve for x
    x = 10,412,194,057.36/109,635.46
  6. Step 6: Final answer
    x = 94,971.05

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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.