Home / 211,187.81-291,439.19-126,304.88

Finding the Fourth Proportional to 211,187.81, 291,439.19 and 126,304.88

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Solution

The fourth proportional to 211,187.81, 291,439.19 and 126,304.88 is: 174,300.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,187.81 : 291,439.19 = 126,304.88 : x
  2. Step 2: Convert to fraction form
    211,187.81/291,439.19 = 126,304.88/x
  3. Step 3: Cross multiply
    211,187.81x = 291,439.19 × 126,304.88
  4. Step 4: Simplify right side
    211,187.81x = 36,810,190,778.81
  5. Step 5: Solve for x
    x = 36,810,190,778.81/211,187.81
  6. Step 6: Final answer
    x = 174,300.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.