Home / 126,654.08-189,919.76-51,744.47

Finding the Fourth Proportional to 126,654.08, 189,919.76 and 51,744.47

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Solution

The fourth proportional to 126,654.08, 189,919.76 and 51,744.47 is: 77,591.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,654.08 : 189,919.76 = 51,744.47 : x
  2. Step 2: Convert to fraction form
    126,654.08/189,919.76 = 51,744.47/x
  3. Step 3: Cross multiply
    126,654.08x = 189,919.76 × 51,744.47
  4. Step 4: Simplify right side
    126,654.08x = 9,827,296,115.41
  5. Step 5: Solve for x
    x = 9,827,296,115.41/126,654.08
  6. Step 6: Final answer
    x = 77,591.63

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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.