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Finding the Fourth Proportional to 106,636, 159,894.44 and 67,108.40

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Solution

The fourth proportional to 106,636, 159,894.44 and 67,108.40 is: 100,625.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,636 : 159,894.44 = 67,108.40 : x
  2. Step 2: Convert to fraction form
    106,636/159,894.44 = 67,108.40/x
  3. Step 3: Cross multiply
    106,636x = 159,894.44 × 67,108.40
  4. Step 4: Simplify right side
    106,636x = 10,730,260,037.30
  5. Step 5: Solve for x
    x = 10,730,260,037.30/106,636
  6. Step 6: Final answer
    x = 100,625.12

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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.