Home / 108,719.52-150,069.78-68,500.68

Finding the Fourth Proportional to 108,719.52, 150,069.78 and 68,500.68

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Solution

The fourth proportional to 108,719.52, 150,069.78 and 68,500.68 is: 94,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,719.52 : 150,069.78 = 68,500.68 : x
  2. Step 2: Convert to fraction form
    108,719.52/150,069.78 = 68,500.68/x
  3. Step 3: Cross multiply
    108,719.52x = 150,069.78 × 68,500.68
  4. Step 4: Simplify right side
    108,719.52x = 10,279,881,977.45
  5. Step 5: Solve for x
    x = 10,279,881,977.45/108,719.52
  6. Step 6: Final answer
    x = 94,554.15

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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.