Home / 135,019.67-186,338.05-74,595.60

Finding the Fourth Proportional to 135,019.67, 186,338.05 and 74,595.60

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Solution

The fourth proportional to 135,019.67, 186,338.05 and 74,595.60 is: 102,947.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,019.67 : 186,338.05 = 74,595.60 : x
  2. Step 2: Convert to fraction form
    135,019.67/186,338.05 = 74,595.60/x
  3. Step 3: Cross multiply
    135,019.67x = 186,338.05 × 74,595.60
  4. Step 4: Simplify right side
    135,019.67x = 13,899,998,456.09
  5. Step 5: Solve for x
    x = 13,899,998,456.09/135,019.67
  6. Step 6: Final answer
    x = 102,947.96

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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.