Home / 109,065.90-150,446.79-68,708.46

Finding the Fourth Proportional to 109,065.90, 150,446.79 and 68,708.46

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Solution

The fourth proportional to 109,065.90, 150,446.79 and 68,708.46 is: 94,777.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,065.90 : 150,446.79 = 68,708.46 : x
  2. Step 2: Convert to fraction form
    109,065.90/150,446.79 = 68,708.46/x
  3. Step 3: Cross multiply
    109,065.90x = 150,446.79 × 68,708.46
  4. Step 4: Simplify right side
    109,065.90x = 10,336,967,252.84
  5. Step 5: Solve for x
    x = 10,336,967,252.84/109,065.90
  6. Step 6: Final answer
    x = 94,777.26

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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.