Home / 211,506.90-291,778.92-126,607.56

Finding the Fourth Proportional to 211,506.90, 291,778.92 and 126,607.56

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Solution

The fourth proportional to 211,506.90, 291,778.92 and 126,607.56 is: 174,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,506.90 : 291,778.92 = 126,607.56 : x
  2. Step 2: Convert to fraction form
    211,506.90/291,778.92 = 126,607.56/x
  3. Step 3: Cross multiply
    211,506.90x = 291,778.92 × 126,607.56
  4. Step 4: Simplify right side
    211,506.90x = 36,941,417,120.64
  5. Step 5: Solve for x
    x = 36,941,417,120.64/211,506.90
  6. Step 6: Final answer
    x = 174,658.21

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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.