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Finding the Fourth Proportional to 84,082.95, 126,017.79 and 83,193.09

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Solution

The fourth proportional to 84,082.95, 126,017.79 and 83,193.09 is: 124,684.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,082.95 : 126,017.79 = 83,193.09 : x
  2. Step 2: Convert to fraction form
    84,082.95/126,017.79 = 83,193.09/x
  3. Step 3: Cross multiply
    84,082.95x = 126,017.79 × 83,193.09
  4. Step 4: Simplify right side
    84,082.95x = 10,483,809,345.07
  5. Step 5: Solve for x
    x = 10,483,809,345.07/84,082.95
  6. Step 6: Final answer
    x = 124,684.13

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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.