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Finding the Fourth Proportional to 135,415.54, 186,872.97 and 75,799.54

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Solution

The fourth proportional to 135,415.54, 186,872.97 and 75,799.54 is: 104,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,415.54 : 186,872.97 = 75,799.54 : x
  2. Step 2: Convert to fraction form
    135,415.54/186,872.97 = 75,799.54/x
  3. Step 3: Cross multiply
    135,415.54x = 186,872.97 × 75,799.54
  4. Step 4: Simplify right side
    135,415.54x = 14,164,885,164.43
  5. Step 5: Solve for x
    x = 14,164,885,164.43/135,415.54
  6. Step 6: Final answer
    x = 104,603.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.