Home / 165,972.96-229,039.92-90,516.96

Finding the Fourth Proportional to 165,972.96, 229,039.92 and 90,516.96

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Solution

The fourth proportional to 165,972.96, 229,039.92 and 90,516.96 is: 124,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,972.96 : 229,039.92 = 90,516.96 : x
  2. Step 2: Convert to fraction form
    165,972.96/229,039.92 = 90,516.96/x
  3. Step 3: Cross multiply
    165,972.96x = 229,039.92 × 90,516.96
  4. Step 4: Simplify right side
    165,972.96x = 20,731,997,277.04
  5. Step 5: Solve for x
    x = 20,731,997,277.04/165,972.96
  6. Step 6: Final answer
    x = 124,911.90

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1.5x scale

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.