Home / 211,076.72-291,276.24-126,240.56

Finding the Fourth Proportional to 211,076.72, 291,276.24 and 126,240.56

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Solution

The fourth proportional to 211,076.72, 291,276.24 and 126,240.56 is: 174,206.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,076.72 : 291,276.24 = 126,240.56 : x
  2. Step 2: Convert to fraction form
    211,076.72/291,276.24 = 126,240.56/x
  3. Step 3: Cross multiply
    211,076.72x = 291,276.24 × 126,240.56
  4. Step 4: Simplify right side
    211,076.72x = 36,770,875,652.29
  5. Step 5: Solve for x
    x = 36,770,875,652.29/211,076.72
  6. Step 6: Final answer
    x = 174,206.21

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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.