Home / 129,228.12-194,063.61-70,179.12

Finding the Fourth Proportional to 129,228.12, 194,063.61 and 70,179.12

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Solution

The fourth proportional to 129,228.12, 194,063.61 and 70,179.12 is: 105,388.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,228.12 : 194,063.61 = 70,179.12 : x
  2. Step 2: Convert to fraction form
    129,228.12/194,063.61 = 70,179.12/x
  3. Step 3: Cross multiply
    129,228.12x = 194,063.61 × 70,179.12
  4. Step 4: Simplify right side
    129,228.12x = 13,619,213,373.82
  5. Step 5: Solve for x
    x = 13,619,213,373.82/129,228.12
  6. Step 6: Final answer
    x = 105,388.93

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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.