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Finding the Fourth Proportional to 181,357.20, 250,009.16 and 126,739.80

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Solution

The fourth proportional to 181,357.20, 250,009.16 and 126,739.80 is: 174,716.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,357.20 : 250,009.16 = 126,739.80 : x
  2. Step 2: Convert to fraction form
    181,357.20/250,009.16 = 126,739.80/x
  3. Step 3: Cross multiply
    181,357.20x = 250,009.16 × 126,739.80
  4. Step 4: Simplify right side
    181,357.20x = 31,686,111,253.42
  5. Step 5: Solve for x
    x = 31,686,111,253.42/181,357.20
  6. Step 6: Final answer
    x = 174,716.59

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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.