Home / 126,206.40-189,297.18-51,331.02

Finding the Fourth Proportional to 126,206.40, 189,297.18 and 51,331.02

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Solution

The fourth proportional to 126,206.40, 189,297.18 and 51,331.02 is: 76,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,206.40 : 189,297.18 = 51,331.02 : x
  2. Step 2: Convert to fraction form
    126,206.40/189,297.18 = 51,331.02/x
  3. Step 3: Cross multiply
    126,206.40x = 189,297.18 × 51,331.02
  4. Step 4: Simplify right side
    126,206.40x = 9,716,817,332.52
  5. Step 5: Solve for x
    x = 9,716,817,332.52/126,206.40
  6. Step 6: Final answer
    x = 76,991.48

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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.