Home / 211,406.90-291,778.81-126,523.76

Finding the Fourth Proportional to 211,406.90, 291,778.81 and 126,523.76

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Solution

The fourth proportional to 211,406.90, 291,778.81 and 126,523.76 is: 174,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,406.90 : 291,778.81 = 126,523.76 : x
  2. Step 2: Convert to fraction form
    211,406.90/291,778.81 = 126,523.76/x
  3. Step 3: Cross multiply
    211,406.90x = 291,778.81 × 126,523.76
  4. Step 4: Simplify right side
    211,406.90x = 36,916,950,354.32
  5. Step 5: Solve for x
    x = 36,916,950,354.32/211,406.90
  6. Step 6: Final answer
    x = 174,625.10

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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.