Home / 165,343.03-248,009.05-71,848.78

Finding the Fourth Proportional to 165,343.03, 248,009.05 and 71,848.78

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Solution

The fourth proportional to 165,343.03, 248,009.05 and 71,848.78 is: 107,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,343.03 : 248,009.05 = 71,848.78 : x
  2. Step 2: Convert to fraction form
    165,343.03/248,009.05 = 71,848.78/x
  3. Step 3: Cross multiply
    165,343.03x = 248,009.05 × 71,848.78
  4. Step 4: Simplify right side
    165,343.03x = 17,819,147,671.46
  5. Step 5: Solve for x
    x = 17,819,147,671.46/165,343.03
  6. Step 6: Final answer
    x = 107,770.78

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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.