Home / 181,185.30-271,783.64-86,425.78

Finding the Fourth Proportional to 181,185.30, 271,783.64 and 86,425.78

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Solution

The fourth proportional to 181,185.30, 271,783.64 and 86,425.78 is: 129,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,185.30 : 271,783.64 = 86,425.78 : x
  2. Step 2: Convert to fraction form
    181,185.30/271,783.64 = 86,425.78/x
  3. Step 3: Cross multiply
    181,185.30x = 271,783.64 × 86,425.78
  4. Step 4: Simplify right side
    181,185.30x = 23,489,111,287.19
  5. Step 5: Solve for x
    x = 23,489,111,287.19/181,185.30
  6. Step 6: Final answer
    x = 129,641.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.