Home / 135,458.22-186,930.29-74,203.92

Finding the Fourth Proportional to 135,458.22, 186,930.29 and 74,203.92

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Solution

The fourth proportional to 135,458.22, 186,930.29 and 74,203.92 is: 102,400.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,458.22 : 186,930.29 = 74,203.92 : x
  2. Step 2: Convert to fraction form
    135,458.22/186,930.29 = 74,203.92/x
  3. Step 3: Cross multiply
    135,458.22x = 186,930.29 × 74,203.92
  4. Step 4: Simplify right side
    135,458.22x = 13,870,959,913.72
  5. Step 5: Solve for x
    x = 13,870,959,913.72/135,458.22
  6. Step 6: Final answer
    x = 102,400.28

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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.