Home / 135,930.72-187,579.18-75,505.22

Finding the Fourth Proportional to 135,930.72, 187,579.18 and 75,505.22

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Solution

The fourth proportional to 135,930.72, 187,579.18 and 75,505.22 is: 104,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,930.72 : 187,579.18 = 75,505.22 : x
  2. Step 2: Convert to fraction form
    135,930.72/187,579.18 = 75,505.22/x
  3. Step 3: Cross multiply
    135,930.72x = 187,579.18 × 75,505.22
  4. Step 4: Simplify right side
    135,930.72x = 14,163,207,253.32
  5. Step 5: Solve for x
    x = 14,163,207,253.32/135,930.72
  6. Step 6: Final answer
    x = 104,194.31

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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.