Home / 171,267.12-256,620.20-91,220.13

Finding the Fourth Proportional to 171,267.12, 256,620.20 and 91,220.13

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Solution

The fourth proportional to 171,267.12, 256,620.20 and 91,220.13 is: 136,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,267.12 : 256,620.20 = 91,220.13 : x
  2. Step 2: Convert to fraction form
    171,267.12/256,620.20 = 91,220.13/x
  3. Step 3: Cross multiply
    171,267.12x = 256,620.20 × 91,220.13
  4. Step 4: Simplify right side
    171,267.12x = 23,408,927,548.53
  5. Step 5: Solve for x
    x = 23,408,927,548.53/171,267.12
  6. Step 6: Final answer
    x = 136,680.80

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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.