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Finding the Fourth Proportional to 181,454.57, 250,388.28 and 100,869.09

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Solution

The fourth proportional to 181,454.57, 250,388.28 and 100,869.09 is: 139,188.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,454.57 : 250,388.28 = 100,869.09 : x
  2. Step 2: Convert to fraction form
    181,454.57/250,388.28 = 100,869.09/x
  3. Step 3: Cross multiply
    181,454.57x = 250,388.28 × 100,869.09
  4. Step 4: Simplify right side
    181,454.57x = 25,256,437,950.27
  5. Step 5: Solve for x
    x = 25,256,437,950.27/181,454.57
  6. Step 6: Final answer
    x = 139,188.77

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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.