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Finding the Fourth Proportional to 129,377.88, 194,066.80 and 35,883.64

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Solution

The fourth proportional to 129,377.88, 194,066.80 and 35,883.64 is: 53,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,377.88 : 194,066.80 = 35,883.64 : x
  2. Step 2: Convert to fraction form
    129,377.88/194,066.80 = 35,883.64/x
  3. Step 3: Cross multiply
    129,377.88x = 194,066.80 × 35,883.64
  4. Step 4: Simplify right side
    129,377.88x = 6,963,823,187.15
  5. Step 5: Solve for x
    x = 6,963,823,187.15/129,377.88
  6. Step 6: Final answer
    x = 53,825.45

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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.