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Finding the Fourth Proportional to 84,090.96, 126,029.78 and 83,201.10

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Solution

The fourth proportional to 84,090.96, 126,029.78 and 83,201.10 is: 124,696.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,090.96 : 126,029.78 = 83,201.10 : x
  2. Step 2: Convert to fraction form
    84,090.96/126,029.78 = 83,201.10/x
  3. Step 3: Cross multiply
    84,090.96x = 126,029.78 × 83,201.10
  4. Step 4: Simplify right side
    84,090.96x = 10,485,816,328.76
  5. Step 5: Solve for x
    x = 10,485,816,328.76/84,090.96
  6. Step 6: Final answer
    x = 124,696.12

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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.