Home / 165,767.15-248,486.70-81,458.30

Finding the Fourth Proportional to 165,767.15, 248,486.70 and 81,458.30

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Solution

The fourth proportional to 165,767.15, 248,486.70 and 81,458.30 is: 122,106.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,767.15 : 248,486.70 = 81,458.30 : x
  2. Step 2: Convert to fraction form
    165,767.15/248,486.70 = 81,458.30/x
  3. Step 3: Cross multiply
    165,767.15x = 248,486.70 × 81,458.30
  4. Step 4: Simplify right side
    165,767.15x = 20,241,304,154.61
  5. Step 5: Solve for x
    x = 20,241,304,154.61/165,767.15
  6. Step 6: Final answer
    x = 122,106.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.