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Finding the Fourth Proportional to 181,449.79, 250,386.48 and 100,872.41

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Solution

The fourth proportional to 181,449.79, 250,386.48 and 100,872.41 is: 139,196.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,449.79 : 250,386.48 = 100,872.41 : x
  2. Step 2: Convert to fraction form
    181,449.79/250,386.48 = 100,872.41/x
  3. Step 3: Cross multiply
    181,449.79x = 250,386.48 × 100,872.41
  4. Step 4: Simplify right side
    181,449.79x = 25,257,086,417.08
  5. Step 5: Solve for x
    x = 25,257,086,417.08/181,449.79
  6. Step 6: Final answer
    x = 139,196.01

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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.