Home / 129,434.36-194,240.16-45,194.49

Finding the Fourth Proportional to 129,434.36, 194,240.16 and 45,194.49

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Solution

The fourth proportional to 129,434.36, 194,240.16 and 45,194.49 is: 67,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,434.36 : 194,240.16 = 45,194.49 : x
  2. Step 2: Convert to fraction form
    129,434.36/194,240.16 = 45,194.49/x
  3. Step 3: Cross multiply
    129,434.36x = 194,240.16 × 45,194.49
  4. Step 4: Simplify right side
    129,434.36x = 8,778,584,968.72
  5. Step 5: Solve for x
    x = 8,778,584,968.72/129,434.36
  6. Step 6: Final answer
    x = 67,822.68

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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.