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Finding the Fourth Proportional to 73,189.26, 109,783.89 and 17,785.26

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Solution

The fourth proportional to 73,189.26, 109,783.89 and 17,785.26 is: 26,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,189.26 : 109,783.89 = 17,785.26 : x
  2. Step 2: Convert to fraction form
    73,189.26/109,783.89 = 17,785.26/x
  3. Step 3: Cross multiply
    73,189.26x = 109,783.89 × 17,785.26
  4. Step 4: Simplify right side
    73,189.26x = 1,952,535,027.46
  5. Step 5: Solve for x
    x = 1,952,535,027.46/73,189.26
  6. Step 6: Final answer
    x = 26,677.89

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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.