Home / 102,448.40-153,403.34-82,351.22

Finding the Fourth Proportional to 102,448.40, 153,403.34 and 82,351.22

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Solution

The fourth proportional to 102,448.40, 153,403.34 and 82,351.22 is: 123,310.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,448.40 : 153,403.34 = 82,351.22 : x
  2. Step 2: Convert to fraction form
    102,448.40/153,403.34 = 82,351.22/x
  3. Step 3: Cross multiply
    102,448.40x = 153,403.34 × 82,351.22
  4. Step 4: Simplify right side
    102,448.40x = 12,632,951,022.30
  5. Step 5: Solve for x
    x = 12,632,951,022.30/102,448.40
  6. Step 6: Final answer
    x = 123,310.38

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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.