Home / 126,037.19-189,111.36-66,858.33

Finding the Fourth Proportional to 126,037.19, 189,111.36 and 66,858.33

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Solution

The fourth proportional to 126,037.19, 189,111.36 and 66,858.33 is: 100,316.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,037.19 : 189,111.36 = 66,858.33 : x
  2. Step 2: Convert to fraction form
    126,037.19/189,111.36 = 66,858.33/x
  3. Step 3: Cross multiply
    126,037.19x = 189,111.36 × 66,858.33
  4. Step 4: Simplify right side
    126,037.19x = 12,643,669,713.63
  5. Step 5: Solve for x
    x = 12,643,669,713.63/126,037.19
  6. Step 6: Final answer
    x = 100,316.98

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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.