Home / 129,416.06-194,170.80-45,188.64

Finding the Fourth Proportional to 129,416.06, 194,170.80 and 45,188.64

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Solution

The fourth proportional to 129,416.06, 194,170.80 and 45,188.64 is: 67,799.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,416.06 : 194,170.80 = 45,188.64 : x
  2. Step 2: Convert to fraction form
    129,416.06/194,170.80 = 45,188.64/x
  3. Step 3: Cross multiply
    129,416.06x = 194,170.80 × 45,188.64
  4. Step 4: Simplify right side
    129,416.06x = 8,774,314,379.71
  5. Step 5: Solve for x
    x = 8,774,314,379.71/129,416.06
  6. Step 6: Final answer
    x = 67,799.27

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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.