Home / 126,818.66-189,235.64-126,080.55

Finding the Fourth Proportional to 126,818.66, 189,235.64 and 126,080.55

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Solution

The fourth proportional to 126,818.66, 189,235.64 and 126,080.55 is: 188,134.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,818.66 : 189,235.64 = 126,080.55 : x
  2. Step 2: Convert to fraction form
    126,818.66/189,235.64 = 126,080.55/x
  3. Step 3: Cross multiply
    126,818.66x = 189,235.64 × 126,080.55
  4. Step 4: Simplify right side
    126,818.66x = 23,858,933,886.00
  5. Step 5: Solve for x
    x = 23,858,933,886.00/126,818.66
  6. Step 6: Final answer
    x = 188,134.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.