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Finding the Fourth Proportional to 172,193.96, 237,692.12 and 129,297.36

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Solution

The fourth proportional to 172,193.96, 237,692.12 and 129,297.36 is: 178,478.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,193.96 : 237,692.12 = 129,297.36 : x
  2. Step 2: Convert to fraction form
    172,193.96/237,692.12 = 129,297.36/x
  3. Step 3: Cross multiply
    172,193.96x = 237,692.12 × 129,297.36
  4. Step 4: Simplify right side
    172,193.96x = 30,732,963,608.80
  5. Step 5: Solve for x
    x = 30,732,963,608.80/172,193.96
  6. Step 6: Final answer
    x = 178,478.76

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1.5x scale

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.