Home / 135,379.40-186,825.04-74,950.96

Finding the Fourth Proportional to 135,379.40, 186,825.04 and 74,950.96

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Solution

The fourth proportional to 135,379.40, 186,825.04 and 74,950.96 is: 103,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,379.40 : 186,825.04 = 74,950.96 : x
  2. Step 2: Convert to fraction form
    135,379.40/186,825.04 = 74,950.96/x
  3. Step 3: Cross multiply
    135,379.40x = 186,825.04 × 74,950.96
  4. Step 4: Simplify right side
    135,379.40x = 14,002,716,100.04
  5. Step 5: Solve for x
    x = 14,002,716,100.04/135,379.40
  6. Step 6: Final answer
    x = 103,433.14

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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.