Home / 154,738.64-213,557.04-86,773.94

Finding the Fourth Proportional to 154,738.64, 213,557.04 and 86,773.94

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Solution

The fourth proportional to 154,738.64, 213,557.04 and 86,773.94 is: 119,757.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,738.64 : 213,557.04 = 86,773.94 : x
  2. Step 2: Convert to fraction form
    154,738.64/213,557.04 = 86,773.94/x
  3. Step 3: Cross multiply
    154,738.64x = 213,557.04 × 86,773.94
  4. Step 4: Simplify right side
    154,738.64x = 18,531,185,775.54
  5. Step 5: Solve for x
    x = 18,531,185,775.54/154,738.64
  6. Step 6: Final answer
    x = 119,757.97

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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.