Home / 90,892.09-136,291.99-68,195.13

Finding the Fourth Proportional to 90,892.09, 136,291.99 and 68,195.13

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Solution

The fourth proportional to 90,892.09, 136,291.99 and 68,195.13 is: 102,258.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,892.09 : 136,291.99 = 68,195.13 : x
  2. Step 2: Convert to fraction form
    90,892.09/136,291.99 = 68,195.13/x
  3. Step 3: Cross multiply
    90,892.09x = 136,291.99 × 68,195.13
  4. Step 4: Simplify right side
    90,892.09x = 9,294,449,976.01
  5. Step 5: Solve for x
    x = 9,294,449,976.01/90,892.09
  6. Step 6: Final answer
    x = 102,258.07

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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.