Home / 126,465.64-189,642.30-67,288.84

Finding the Fourth Proportional to 126,465.64, 189,642.30 and 67,288.84

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Solution

The fourth proportional to 126,465.64, 189,642.30 and 67,288.84 is: 100,903.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,465.64 : 189,642.30 = 67,288.84 : x
  2. Step 2: Convert to fraction form
    126,465.64/189,642.30 = 67,288.84/x
  3. Step 3: Cross multiply
    126,465.64x = 189,642.30 × 67,288.84
  4. Step 4: Simplify right side
    126,465.64x = 12,760,810,381.93
  5. Step 5: Solve for x
    x = 12,760,810,381.93/126,465.64
  6. Step 6: Final answer
    x = 100,903.38

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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.