Home / 129,270.54-178,333.47-75,557.82

Finding the Fourth Proportional to 129,270.54, 178,333.47 and 75,557.82

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Solution

The fourth proportional to 129,270.54, 178,333.47 and 75,557.82 is: 104,234.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,270.54 : 178,333.47 = 75,557.82 : x
  2. Step 2: Convert to fraction form
    129,270.54/178,333.47 = 75,557.82/x
  3. Step 3: Cross multiply
    129,270.54x = 178,333.47 × 75,557.82
  4. Step 4: Simplify right side
    129,270.54x = 13,474,488,226.24
  5. Step 5: Solve for x
    x = 13,474,488,226.24/129,270.54
  6. Step 6: Final answer
    x = 104,234.79

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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.