Home / 84,086.27-115,918.49-66,150.14

Finding the Fourth Proportional to 84,086.27, 115,918.49 and 66,150.14

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Solution

The fourth proportional to 84,086.27, 115,918.49 and 66,150.14 is: 91,192.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,086.27 : 115,918.49 = 66,150.14 : x
  2. Step 2: Convert to fraction form
    84,086.27/115,918.49 = 66,150.14/x
  3. Step 3: Cross multiply
    84,086.27x = 115,918.49 × 66,150.14
  4. Step 4: Simplify right side
    84,086.27x = 7,668,023,927.87
  5. Step 5: Solve for x
    x = 7,668,023,927.87/84,086.27
  6. Step 6: Final answer
    x = 91,192.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.