Home / 126,615.60-189,923.40-51,686.55

Finding the Fourth Proportional to 126,615.60, 189,923.40 and 51,686.55

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Solution

The fourth proportional to 126,615.60, 189,923.40 and 51,686.55 is: 77,529.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,615.60 : 189,923.40 = 51,686.55 : x
  2. Step 2: Convert to fraction form
    126,615.60/189,923.40 = 51,686.55/x
  3. Step 3: Cross multiply
    126,615.60x = 189,923.40 × 51,686.55
  4. Step 4: Simplify right side
    126,615.60x = 9,816,485,310.27
  5. Step 5: Solve for x
    x = 9,816,485,310.27/126,615.60
  6. Step 6: Final answer
    x = 77,529.83

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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.