Home / 181,976.10-251,128.02-105,540.50

Finding the Fourth Proportional to 181,976.10, 251,128.02 and 105,540.50

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Solution

The fourth proportional to 181,976.10, 251,128.02 and 105,540.50 is: 145,646.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,976.10 : 251,128.02 = 105,540.50 : x
  2. Step 2: Convert to fraction form
    181,976.10/251,128.02 = 105,540.50/x
  3. Step 3: Cross multiply
    181,976.10x = 251,128.02 × 105,540.50
  4. Step 4: Simplify right side
    181,976.10x = 26,504,176,794.81
  5. Step 5: Solve for x
    x = 26,504,176,794.81/181,976.10
  6. Step 6: Final answer
    x = 145,646.47

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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.