Home / 154,538.24-213,268.02-90,881.96

Finding the Fourth Proportional to 154,538.24, 213,268.02 and 90,881.96

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Solution

The fourth proportional to 154,538.24, 213,268.02 and 90,881.96 is: 125,420.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,538.24 : 213,268.02 = 90,881.96 : x
  2. Step 2: Convert to fraction form
    154,538.24/213,268.02 = 90,881.96/x
  3. Step 3: Cross multiply
    154,538.24x = 213,268.02 × 90,881.96
  4. Step 4: Simplify right side
    154,538.24x = 19,382,215,662.92
  5. Step 5: Solve for x
    x = 19,382,215,662.92/154,538.24
  6. Step 6: Final answer
    x = 125,420.19

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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.