Home / 129,415.94-194,170.62-45,188.51

Finding the Fourth Proportional to 129,415.94, 194,170.62 and 45,188.51

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Solution

The fourth proportional to 129,415.94, 194,170.62 and 45,188.51 is: 67,799.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,415.94 : 194,170.62 = 45,188.51 : x
  2. Step 2: Convert to fraction form
    129,415.94/194,170.62 = 45,188.51/x
  3. Step 3: Cross multiply
    129,415.94x = 194,170.62 × 45,188.51
  4. Step 4: Simplify right side
    129,415.94x = 8,774,280,777.63
  5. Step 5: Solve for x
    x = 8,774,280,777.63/129,415.94
  6. Step 6: Final answer
    x = 67,799.07

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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.