Home / 126,379.88-189,715.62-64,181.60

Finding the Fourth Proportional to 126,379.88, 189,715.62 and 64,181.60

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Solution

The fourth proportional to 126,379.88, 189,715.62 and 64,181.60 is: 96,346.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,379.88 : 189,715.62 = 64,181.60 : x
  2. Step 2: Convert to fraction form
    126,379.88/189,715.62 = 64,181.60/x
  3. Step 3: Cross multiply
    126,379.88x = 189,715.62 × 64,181.60
  4. Step 4: Simplify right side
    126,379.88x = 12,176,251,088.01
  5. Step 5: Solve for x
    x = 12,176,251,088.01/126,379.88
  6. Step 6: Final answer
    x = 96,346.44

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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.