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Finding the Fourth Proportional to 162,638.80, 224,579.32 and 102,228.90

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Solution

The fourth proportional to 162,638.80, 224,579.32 and 102,228.90 is: 141,162.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,638.80 : 224,579.32 = 102,228.90 : x
  2. Step 2: Convert to fraction form
    162,638.80/224,579.32 = 102,228.90/x
  3. Step 3: Cross multiply
    162,638.80x = 224,579.32 × 102,228.90
  4. Step 4: Simplify right side
    162,638.80x = 22,958,495,556.92
  5. Step 5: Solve for x
    x = 22,958,495,556.92/162,638.80
  6. Step 6: Final answer
    x = 141,162.48

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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.