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Finding the Fourth Proportional to 162,996.21, 225,008.46 and 102,655.53

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Solution

The fourth proportional to 162,996.21, 225,008.46 and 102,655.53 is: 141,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,996.21 : 225,008.46 = 102,655.53 : x
  2. Step 2: Convert to fraction form
    162,996.21/225,008.46 = 102,655.53/x
  3. Step 3: Cross multiply
    162,996.21x = 225,008.46 × 102,655.53
  4. Step 4: Simplify right side
    162,996.21x = 23,098,362,715.78
  5. Step 5: Solve for x
    x = 23,098,362,715.78/162,996.21
  6. Step 6: Final answer
    x = 141,711.04

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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.