Home / 126,407.10-189,611.39-42,167.06

Finding the Fourth Proportional to 126,407.10, 189,611.39 and 42,167.06

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Solution

The fourth proportional to 126,407.10, 189,611.39 and 42,167.06 is: 63,250.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,407.10 : 189,611.39 = 42,167.06 : x
  2. Step 2: Convert to fraction form
    126,407.10/189,611.39 = 42,167.06/x
  3. Step 3: Cross multiply
    126,407.10x = 189,611.39 × 42,167.06
  4. Step 4: Simplify right side
    126,407.10x = 7,995,354,858.81
  5. Step 5: Solve for x
    x = 7,995,354,858.81/126,407.10
  6. Step 6: Final answer
    x = 63,250.84

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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.