Home / 106,442.71-159,338.03-68,928.12

Finding the Fourth Proportional to 106,442.71, 159,338.03 and 68,928.12

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Solution

The fourth proportional to 106,442.71, 159,338.03 and 68,928.12 is: 103,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,442.71 : 159,338.03 = 68,928.12 : x
  2. Step 2: Convert to fraction form
    106,442.71/159,338.03 = 68,928.12/x
  3. Step 3: Cross multiply
    106,442.71x = 159,338.03 × 68,928.12
  4. Step 4: Simplify right side
    106,442.71x = 10,982,870,507.76
  5. Step 5: Solve for x
    x = 10,982,870,507.76/106,442.71
  6. Step 6: Final answer
    x = 103,181.05

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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.