Home / 135,218.32-186,600.18-74,791.54

Finding the Fourth Proportional to 135,218.32, 186,600.18 and 74,791.54

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Solution

The fourth proportional to 135,218.32, 186,600.18 and 74,791.54 is: 103,211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,218.32 : 186,600.18 = 74,791.54 : x
  2. Step 2: Convert to fraction form
    135,218.32/186,600.18 = 74,791.54/x
  3. Step 3: Cross multiply
    135,218.32x = 186,600.18 × 74,791.54
  4. Step 4: Simplify right side
    135,218.32x = 13,956,114,826.48
  5. Step 5: Solve for x
    x = 13,956,114,826.48/135,218.32
  6. Step 6: Final answer
    x = 103,211.72

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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.