Home / 126,360.66-189,528.02-42,111.75

Finding the Fourth Proportional to 126,360.66, 189,528.02 and 42,111.75

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Solution

The fourth proportional to 126,360.66, 189,528.02 and 42,111.75 is: 63,163.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,360.66 : 189,528.02 = 42,111.75 : x
  2. Step 2: Convert to fraction form
    126,360.66/189,528.02 = 42,111.75/x
  3. Step 3: Cross multiply
    126,360.66x = 189,528.02 × 42,111.75
  4. Step 4: Simplify right side
    126,360.66x = 7,981,356,385.68
  5. Step 5: Solve for x
    x = 7,981,356,385.68/126,360.66
  6. Step 6: Final answer
    x = 63,163.30

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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.