Home / 126,145.72-189,194.82-47,243.08

Finding the Fourth Proportional to 126,145.72, 189,194.82 and 47,243.08

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Solution

The fourth proportional to 126,145.72, 189,194.82 and 47,243.08 is: 70,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,145.72 : 189,194.82 = 47,243.08 : x
  2. Step 2: Convert to fraction form
    126,145.72/189,194.82 = 47,243.08/x
  3. Step 3: Cross multiply
    126,145.72x = 189,194.82 × 47,243.08
  4. Step 4: Simplify right side
    126,145.72x = 8,938,146,016.85
  5. Step 5: Solve for x
    x = 8,938,146,016.85/126,145.72
  6. Step 6: Final answer
    x = 70,855.72

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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.