Home / 135,072.32-186,395.01-74,641.86

Finding the Fourth Proportional to 135,072.32, 186,395.01 and 74,641.86

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Solution

The fourth proportional to 135,072.32, 186,395.01 and 74,641.86 is: 103,003.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,072.32 : 186,395.01 = 74,641.86 : x
  2. Step 2: Convert to fraction form
    135,072.32/186,395.01 = 74,641.86/x
  3. Step 3: Cross multiply
    135,072.32x = 186,395.01 × 74,641.86
  4. Step 4: Simplify right side
    135,072.32x = 13,912,870,241.12
  5. Step 5: Solve for x
    x = 13,912,870,241.12/135,072.32
  6. Step 6: Final answer
    x = 103,003.12

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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.