Home / 126,629.15-189,873.57-51,801.81

Finding the Fourth Proportional to 126,629.15, 189,873.57 and 51,801.81

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Solution

The fourth proportional to 126,629.15, 189,873.57 and 51,801.81 is: 77,674.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,629.15 : 189,873.57 = 51,801.81 : x
  2. Step 2: Convert to fraction form
    126,629.15/189,873.57 = 51,801.81/x
  3. Step 3: Cross multiply
    126,629.15x = 189,873.57 × 51,801.81
  4. Step 4: Simplify right side
    126,629.15x = 9,835,794,597.16
  5. Step 5: Solve for x
    x = 9,835,794,597.16/126,629.15
  6. Step 6: Final answer
    x = 77,674.02

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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.