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Finding the Fourth Proportional to 181,239.35, 250,103.40 and 100,672.07

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Solution

The fourth proportional to 181,239.35, 250,103.40 and 100,672.07 is: 138,923.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,239.35 : 250,103.40 = 100,672.07 : x
  2. Step 2: Convert to fraction form
    181,239.35/250,103.40 = 100,672.07/x
  3. Step 3: Cross multiply
    181,239.35x = 250,103.40 × 100,672.07
  4. Step 4: Simplify right side
    181,239.35x = 25,178,426,992.04
  5. Step 5: Solve for x
    x = 25,178,426,992.04/181,239.35
  6. Step 6: Final answer
    x = 138,923.62

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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.