Home / 126,182.78-189,293.07-40,765.09

Finding the Fourth Proportional to 126,182.78, 189,293.07 and 40,765.09

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Solution

The fourth proportional to 126,182.78, 189,293.07 and 40,765.09 is: 61,153.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,182.78 : 189,293.07 = 40,765.09 : x
  2. Step 2: Convert to fraction form
    126,182.78/189,293.07 = 40,765.09/x
  3. Step 3: Cross multiply
    126,182.78x = 189,293.07 × 40,765.09
  4. Step 4: Simplify right side
    126,182.78x = 7,716,549,271.54
  5. Step 5: Solve for x
    x = 7,716,549,271.54/126,182.78
  6. Step 6: Final answer
    x = 61,153.74

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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.