Home / 81,496.13-122,255.60-77,014.13

Finding the Fourth Proportional to 81,496.13, 122,255.60 and 77,014.13

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Solution

The fourth proportional to 81,496.13, 122,255.60 and 77,014.13 is: 115,531.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,496.13 : 122,255.60 = 77,014.13 : x
  2. Step 2: Convert to fraction form
    81,496.13/122,255.60 = 77,014.13/x
  3. Step 3: Cross multiply
    81,496.13x = 122,255.60 × 77,014.13
  4. Step 4: Simplify right side
    81,496.13x = 9,415,407,675.28
  5. Step 5: Solve for x
    x = 9,415,407,675.28/81,496.13
  6. Step 6: Final answer
    x = 115,531.97

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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.