Home / 165,005.20-247,507.80-82,061.20

Finding the Fourth Proportional to 165,005.20, 247,507.80 and 82,061.20

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Solution

The fourth proportional to 165,005.20, 247,507.80 and 82,061.20 is: 123,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,005.20 : 247,507.80 = 82,061.20 : x
  2. Step 2: Convert to fraction form
    165,005.20/247,507.80 = 82,061.20/x
  3. Step 3: Cross multiply
    165,005.20x = 247,507.80 × 82,061.20
  4. Step 4: Simplify right side
    165,005.20x = 20,310,787,077.36
  5. Step 5: Solve for x
    x = 20,310,787,077.36/165,005.20
  6. Step 6: Final answer
    x = 123,091.80

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1.5x scale

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.