Home / 135,161.16-186,516.90-74,727.96

Finding the Fourth Proportional to 135,161.16, 186,516.90 and 74,727.96

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Solution

The fourth proportional to 135,161.16, 186,516.90 and 74,727.96 is: 103,121.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,161.16 : 186,516.90 = 74,727.96 : x
  2. Step 2: Convert to fraction form
    135,161.16/186,516.90 = 74,727.96/x
  3. Step 3: Cross multiply
    135,161.16x = 186,516.90 × 74,727.96
  4. Step 4: Simplify right side
    135,161.16x = 13,938,027,442.52
  5. Step 5: Solve for x
    x = 13,938,027,442.52/135,161.16
  6. Step 6: Final answer
    x = 103,121.54

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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.