Home / 175,261.78-262,931.55-81,716.50

Finding the Fourth Proportional to 175,261.78, 262,931.55 and 81,716.50

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Solution

The fourth proportional to 175,261.78, 262,931.55 and 81,716.50 is: 122,592.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,261.78 : 262,931.55 = 81,716.50 : x
  2. Step 2: Convert to fraction form
    175,261.78/262,931.55 = 81,716.50/x
  3. Step 3: Cross multiply
    175,261.78x = 262,931.55 × 81,716.50
  4. Step 4: Simplify right side
    175,261.78x = 21,485,846,005.58
  5. Step 5: Solve for x
    x = 21,485,846,005.58/175,261.78
  6. Step 6: Final answer
    x = 122,592.88

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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.