Home / 126,165.77-189,248.68-51,326.61

Finding the Fourth Proportional to 126,165.77, 189,248.68 and 51,326.61

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Solution

The fourth proportional to 126,165.77, 189,248.68 and 51,326.61 is: 76,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,165.77 : 189,248.68 = 51,326.61 : x
  2. Step 2: Convert to fraction form
    126,165.77/189,248.68 = 51,326.61/x
  3. Step 3: Cross multiply
    126,165.77x = 189,248.68 × 51,326.61
  4. Step 4: Simplify right side
    126,165.77x = 9,713,493,191.37
  5. Step 5: Solve for x
    x = 9,713,493,191.37/126,165.77
  6. Step 6: Final answer
    x = 76,989.93

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1.5x scale

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.