Home / 135,337.32-186,763.22-74,906.66

Finding the Fourth Proportional to 135,337.32, 186,763.22 and 74,906.66

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Solution

The fourth proportional to 135,337.32, 186,763.22 and 74,906.66 is: 103,369.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,337.32 : 186,763.22 = 74,906.66 : x
  2. Step 2: Convert to fraction form
    135,337.32/186,763.22 = 74,906.66/x
  3. Step 3: Cross multiply
    135,337.32x = 186,763.22 × 74,906.66
  4. Step 4: Simplify right side
    135,337.32x = 13,989,809,021.05
  5. Step 5: Solve for x
    x = 13,989,809,021.05/135,337.32
  6. Step 6: Final answer
    x = 103,369.93

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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.