Home / 131,228.20-196,842.30-61,114.60

Finding the Fourth Proportional to 131,228.20, 196,842.30 and 61,114.60

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Solution

The fourth proportional to 131,228.20, 196,842.30 and 61,114.60 is: 91,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,228.20 : 196,842.30 = 61,114.60 : x
  2. Step 2: Convert to fraction form
    131,228.20/196,842.30 = 61,114.60/x
  3. Step 3: Cross multiply
    131,228.20x = 196,842.30 × 61,114.60
  4. Step 4: Simplify right side
    131,228.20x = 12,029,938,427.58
  5. Step 5: Solve for x
    x = 12,029,938,427.58/131,228.20
  6. Step 6: Final answer
    x = 91,671.90

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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.