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Finding the Fourth Proportional to 181,281.72, 250,141.05 and 100,701.84

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Solution

The fourth proportional to 181,281.72, 250,141.05 and 100,701.84 is: 138,953.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,281.72 : 250,141.05 = 100,701.84 : x
  2. Step 2: Convert to fraction form
    181,281.72/250,141.05 = 100,701.84/x
  3. Step 3: Cross multiply
    181,281.72x = 250,141.05 × 100,701.84
  4. Step 4: Simplify right side
    181,281.72x = 25,189,663,994.53
  5. Step 5: Solve for x
    x = 25,189,663,994.53/181,281.72
  6. Step 6: Final answer
    x = 138,953.14

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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.