Home / 126,034.19-189,106.86-66,855.33

Finding the Fourth Proportional to 126,034.19, 189,106.86 and 66,855.33

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Solution

The fourth proportional to 126,034.19, 189,106.86 and 66,855.33 is: 100,312.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,034.19 : 189,106.86 = 66,855.33 : x
  2. Step 2: Convert to fraction form
    126,034.19/189,106.86 = 66,855.33/x
  3. Step 3: Cross multiply
    126,034.19x = 189,106.86 × 66,855.33
  4. Step 4: Simplify right side
    126,034.19x = 12,642,801,530.56
  5. Step 5: Solve for x
    x = 12,642,801,530.56/126,034.19
  6. Step 6: Final answer
    x = 100,312.48

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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.