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Finding the Fourth Proportional to 181,303.80, 250,199.54 and 100,731.42

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Solution

The fourth proportional to 181,303.80, 250,199.54 and 100,731.42 is: 139,009.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,303.80 : 250,199.54 = 100,731.42 : x
  2. Step 2: Convert to fraction form
    181,303.80/250,199.54 = 100,731.42/x
  3. Step 3: Cross multiply
    181,303.80x = 250,199.54 × 100,731.42
  4. Step 4: Simplify right side
    181,303.80x = 25,202,954,947.55
  5. Step 5: Solve for x
    x = 25,202,954,947.55/181,303.80
  6. Step 6: Final answer
    x = 139,009.52

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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.