Home / 159,614.13-220,268.94-87,996.69

Finding the Fourth Proportional to 159,614.13, 220,268.94 and 87,996.69

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Solution

The fourth proportional to 159,614.13, 220,268.94 and 87,996.69 is: 121,436.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,614.13 : 220,268.94 = 87,996.69 : x
  2. Step 2: Convert to fraction form
    159,614.13/220,268.94 = 87,996.69/x
  3. Step 3: Cross multiply
    159,614.13x = 220,268.94 × 87,996.69
  4. Step 4: Simplify right side
    159,614.13x = 19,382,937,629.81
  5. Step 5: Solve for x
    x = 19,382,937,629.81/159,614.13
  6. Step 6: Final answer
    x = 121,436.23

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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.