Home / 211,509.90-291,783.06-126,610.56

Finding the Fourth Proportional to 211,509.90, 291,783.06 and 126,610.56

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Solution

The fourth proportional to 211,509.90, 291,783.06 and 126,610.56 is: 174,662.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,509.90 : 291,783.06 = 126,610.56 : x
  2. Step 2: Convert to fraction form
    211,509.90/291,783.06 = 126,610.56/x
  3. Step 3: Cross multiply
    211,509.90x = 291,783.06 × 126,610.56
  4. Step 4: Simplify right side
    211,509.90x = 36,942,816,625.11
  5. Step 5: Solve for x
    x = 36,942,816,625.11/211,509.90
  6. Step 6: Final answer
    x = 174,662.35

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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.