Home / 129,914.20-194,774.10-70,816.60

Finding the Fourth Proportional to 129,914.20, 194,774.10 and 70,816.60

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Solution

The fourth proportional to 129,914.20, 194,774.10 and 70,816.60 is: 106,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,914.20 : 194,774.10 = 70,816.60 : x
  2. Step 2: Convert to fraction form
    129,914.20/194,774.10 = 70,816.60/x
  3. Step 3: Cross multiply
    129,914.20x = 194,774.10 × 70,816.60
  4. Step 4: Simplify right side
    129,914.20x = 13,793,239,530.06
  5. Step 5: Solve for x
    x = 13,793,239,530.06/129,914.20
  6. Step 6: Final answer
    x = 106,171.92

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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.