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Finding the Fourth Proportional to 181,353.67, 250,274.14 and 100,784.59

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Solution

The fourth proportional to 181,353.67, 250,274.14 and 100,784.59 is: 139,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,353.67 : 250,274.14 = 100,784.59 : x
  2. Step 2: Convert to fraction form
    181,353.67/250,274.14 = 100,784.59/x
  3. Step 3: Cross multiply
    181,353.67x = 250,274.14 × 100,784.59
  4. Step 4: Simplify right side
    181,353.67x = 25,223,775,709.86
  5. Step 5: Solve for x
    x = 25,223,775,709.86/181,353.67
  6. Step 6: Final answer
    x = 139,086.11

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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.