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Finding the Fourth Proportional to 181,238.49, 250,117.44 and 100,666.29

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Solution

The fourth proportional to 181,238.49, 250,117.44 and 100,666.29 is: 138,924.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,238.49 : 250,117.44 = 100,666.29 : x
  2. Step 2: Convert to fraction form
    181,238.49/250,117.44 = 100,666.29/x
  3. Step 3: Cross multiply
    181,238.49x = 250,117.44 × 100,666.29
  4. Step 4: Simplify right side
    181,238.49x = 25,178,394,749.10
  5. Step 5: Solve for x
    x = 25,178,394,749.10/181,238.49
  6. Step 6: Final answer
    x = 138,924.10

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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.