Home / 106,219.78-159,308.51-68,156.46

Finding the Fourth Proportional to 106,219.78, 159,308.51 and 68,156.46

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Solution

The fourth proportional to 106,219.78, 159,308.51 and 68,156.46 is: 102,221.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,219.78 : 159,308.51 = 68,156.46 : x
  2. Step 2: Convert to fraction form
    106,219.78/159,308.51 = 68,156.46/x
  3. Step 3: Cross multiply
    106,219.78x = 159,308.51 × 68,156.46
  4. Step 4: Simplify right side
    106,219.78x = 10,857,903,748.69
  5. Step 5: Solve for x
    x = 10,857,903,748.69/106,219.78
  6. Step 6: Final answer
    x = 102,221.11

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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.