Home / 126,698.64-189,850.86-47,769.72

Finding the Fourth Proportional to 126,698.64, 189,850.86 and 47,769.72

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Solution

The fourth proportional to 126,698.64, 189,850.86 and 47,769.72 is: 71,580.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,698.64 : 189,850.86 = 47,769.72 : x
  2. Step 2: Convert to fraction form
    126,698.64/189,850.86 = 47,769.72/x
  3. Step 3: Cross multiply
    126,698.64x = 189,850.86 × 47,769.72
  4. Step 4: Simplify right side
    126,698.64x = 9,069,122,423.96
  5. Step 5: Solve for x
    x = 9,069,122,423.96/126,698.64
  6. Step 6: Final answer
    x = 71,580.27

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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.