Home / 205,654.36-283,808.84-115,013.72

Finding the Fourth Proportional to 205,654.36, 283,808.84 and 115,013.72

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Solution

The fourth proportional to 205,654.36, 283,808.84 and 115,013.72 is: 158,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,654.36 : 283,808.84 = 115,013.72 : x
  2. Step 2: Convert to fraction form
    205,654.36/283,808.84 = 115,013.72/x
  3. Step 3: Cross multiply
    205,654.36x = 283,808.84 × 115,013.72
  4. Step 4: Simplify right side
    205,654.36x = 32,641,910,457.28
  5. Step 5: Solve for x
    x = 32,641,910,457.28/205,654.36
  6. Step 6: Final answer
    x = 158,722.19

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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.