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Finding the Fourth Proportional to 162,991.42, 225,001.80 and 102,650.72

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Solution

The fourth proportional to 162,991.42, 225,001.80 and 102,650.72 is: 141,704.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,991.42 : 225,001.80 = 102,650.72 : x
  2. Step 2: Convert to fraction form
    162,991.42/225,001.80 = 102,650.72/x
  3. Step 3: Cross multiply
    162,991.42x = 225,001.80 × 102,650.72
  4. Step 4: Simplify right side
    162,991.42x = 23,096,595,646.29
  5. Step 5: Solve for x
    x = 23,096,595,646.29/162,991.42
  6. Step 6: Final answer
    x = 141,704.37

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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.