Home / 158,606.24-218,888.19-90,621.75

Finding the Fourth Proportional to 158,606.24, 218,888.19 and 90,621.75

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Solution

The fourth proportional to 158,606.24, 218,888.19 and 90,621.75 is: 125,064.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,606.24 : 218,888.19 = 90,621.75 : x
  2. Step 2: Convert to fraction form
    158,606.24/218,888.19 = 90,621.75/x
  3. Step 3: Cross multiply
    158,606.24x = 218,888.19 × 90,621.75
  4. Step 4: Simplify right side
    158,606.24x = 19,836,030,832.13
  5. Step 5: Solve for x
    x = 19,836,030,832.13/158,606.24
  6. Step 6: Final answer
    x = 125,064.63

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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.