Home / 135,380.22-186,816.62-74,947.32

Finding the Fourth Proportional to 135,380.22, 186,816.62 and 74,947.32

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Solution

The fourth proportional to 135,380.22, 186,816.62 and 74,947.32 is: 103,422.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,380.22 : 186,816.62 = 74,947.32 : x
  2. Step 2: Convert to fraction form
    135,380.22/186,816.62 = 74,947.32/x
  3. Step 3: Cross multiply
    135,380.22x = 186,816.62 × 74,947.32
  4. Step 4: Simplify right side
    135,380.22x = 14,001,405,000.46
  5. Step 5: Solve for x
    x = 14,001,405,000.46/135,380.22
  6. Step 6: Final answer
    x = 103,422.83

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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.