Home / 165,054.60-247,542-76,222.68

Finding the Fourth Proportional to 165,054.60, 247,542 and 76,222.68

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Solution

The fourth proportional to 165,054.60, 247,542 and 76,222.68 is: 114,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,054.60 : 247,542 = 76,222.68 : x
  2. Step 2: Convert to fraction form
    165,054.60/247,542 = 76,222.68/x
  3. Step 3: Cross multiply
    165,054.60x = 247,542 × 76,222.68
  4. Step 4: Simplify right side
    165,054.60x = 18,868,314,652.56
  5. Step 5: Solve for x
    x = 18,868,314,652.56/165,054.60
  6. Step 6: Final answer
    x = 114,315.59

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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.