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Finding the Fourth Proportional to 161,744.70, 242,649.45 and 135,630.30

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Solution

The fourth proportional to 161,744.70, 242,649.45 and 135,630.30 is: 203,472.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,744.70 : 242,649.45 = 135,630.30 : x
  2. Step 2: Convert to fraction form
    161,744.70/242,649.45 = 135,630.30/x
  3. Step 3: Cross multiply
    161,744.70x = 242,649.45 × 135,630.30
  4. Step 4: Simplify right side
    161,744.70x = 32,910,617,698.34
  5. Step 5: Solve for x
    x = 32,910,617,698.34/161,744.70
  6. Step 6: Final answer
    x = 203,472.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.