Home / 135,062.23-186,383.31-74,631.58

Finding the Fourth Proportional to 135,062.23, 186,383.31 and 74,631.58

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Solution

The fourth proportional to 135,062.23, 186,383.31 and 74,631.58 is: 102,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,062.23 : 186,383.31 = 74,631.58 : x
  2. Step 2: Convert to fraction form
    135,062.23/186,383.31 = 74,631.58/x
  3. Step 3: Cross multiply
    135,062.23x = 186,383.31 × 74,631.58
  4. Step 4: Simplify right side
    135,062.23x = 13,910,080,910.93
  5. Step 5: Solve for x
    x = 13,910,080,910.93/135,062.23
  6. Step 6: Final answer
    x = 102,990.16

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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.