Home / 135,020.87-186,327.92-74,595.41

Finding the Fourth Proportional to 135,020.87, 186,327.92 and 74,595.41

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Solution

The fourth proportional to 135,020.87, 186,327.92 and 74,595.41 is: 102,941.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,020.87 : 186,327.92 = 74,595.41 : x
  2. Step 2: Convert to fraction form
    135,020.87/186,327.92 = 74,595.41/x
  3. Step 3: Cross multiply
    135,020.87x = 186,327.92 × 74,595.41
  4. Step 4: Simplify right side
    135,020.87x = 13,899,207,213.87
  5. Step 5: Solve for x
    x = 13,899,207,213.87/135,020.87
  6. Step 6: Final answer
    x = 102,941.18

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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.