Home / 126,213.90-189,265.46-47,272.77

Finding the Fourth Proportional to 126,213.90, 189,265.46 and 47,272.77

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Solution

The fourth proportional to 126,213.90, 189,265.46 and 47,272.77 is: 70,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,213.90 : 189,265.46 = 47,272.77 : x
  2. Step 2: Convert to fraction form
    126,213.90/189,265.46 = 47,272.77/x
  3. Step 3: Cross multiply
    126,213.90x = 189,265.46 × 47,272.77
  4. Step 4: Simplify right side
    126,213.90x = 8,947,102,323.16
  5. Step 5: Solve for x
    x = 8,947,102,323.16/126,213.90
  6. Step 6: Final answer
    x = 70,888.41

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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.