Home / 106,469.72-159,442.14-66,928.76

Finding the Fourth Proportional to 106,469.72, 159,442.14 and 66,928.76

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Solution

The fourth proportional to 106,469.72, 159,442.14 and 66,928.76 is: 100,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,469.72 : 159,442.14 = 66,928.76 : x
  2. Step 2: Convert to fraction form
    106,469.72/159,442.14 = 66,928.76/x
  3. Step 3: Cross multiply
    106,469.72x = 159,442.14 × 66,928.76
  4. Step 4: Simplify right side
    106,469.72x = 10,671,264,721.95
  5. Step 5: Solve for x
    x = 10,671,264,721.95/106,469.72
  6. Step 6: Final answer
    x = 100,228.17

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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.