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Finding the Fourth Proportional to 106,685.62, 147,162.81 and 68,982.10

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Solution

The fourth proportional to 106,685.62, 147,162.81 and 68,982.10 is: 95,154.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,685.62 : 147,162.81 = 68,982.10 : x
  2. Step 2: Convert to fraction form
    106,685.62/147,162.81 = 68,982.10/x
  3. Step 3: Cross multiply
    106,685.62x = 147,162.81 × 68,982.10
  4. Step 4: Simplify right side
    106,685.62x = 10,151,599,675.70
  5. Step 5: Solve for x
    x = 10,151,599,675.70/106,685.62
  6. Step 6: Final answer
    x = 95,154.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.