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Finding the Fourth Proportional to 106,689.60, 160,017.60 and 67,125.60

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Solution

The fourth proportional to 106,689.60, 160,017.60 and 67,125.60 is: 100,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,689.60 : 160,017.60 = 67,125.60 : x
  2. Step 2: Convert to fraction form
    106,689.60/160,017.60 = 67,125.60/x
  3. Step 3: Cross multiply
    106,689.60x = 160,017.60 × 67,125.60
  4. Step 4: Simplify right side
    106,689.60x = 10,741,277,410.56
  5. Step 5: Solve for x
    x = 10,741,277,410.56/106,689.60
  6. Step 6: Final answer
    x = 100,677.83

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1.5x scale

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.