Home / 135,059.56-186,381.48-74,634.40

Finding the Fourth Proportional to 135,059.56, 186,381.48 and 74,634.40

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Solution

The fourth proportional to 135,059.56, 186,381.48 and 74,634.40 is: 102,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,059.56 : 186,381.48 = 74,634.40 : x
  2. Step 2: Convert to fraction form
    135,059.56/186,381.48 = 74,634.40/x
  3. Step 3: Cross multiply
    135,059.56x = 186,381.48 × 74,634.40
  4. Step 4: Simplify right side
    135,059.56x = 13,910,469,930.91
  5. Step 5: Solve for x
    x = 13,910,469,930.91/135,059.56
  6. Step 6: Final answer
    x = 102,995.08

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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.