Home / 126,124.27-189,180.94-31,352.45

Finding the Fourth Proportional to 126,124.27, 189,180.94 and 31,352.45

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Solution

The fourth proportional to 126,124.27, 189,180.94 and 31,352.45 is: 47,027.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,124.27 : 189,180.94 = 31,352.45 : x
  2. Step 2: Convert to fraction form
    126,124.27/189,180.94 = 31,352.45/x
  3. Step 3: Cross multiply
    126,124.27x = 189,180.94 × 31,352.45
  4. Step 4: Simplify right side
    126,124.27x = 5,931,285,962.30
  5. Step 5: Solve for x
    x = 5,931,285,962.30/126,124.27
  6. Step 6: Final answer
    x = 47,027.32

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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.