Home / 131,182.70-197,211.45-111,937.10

Finding the Fourth Proportional to 131,182.70, 197,211.45 and 111,937.10

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Solution

The fourth proportional to 131,182.70, 197,211.45 and 111,937.10 is: 168,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,182.70 : 197,211.45 = 111,937.10 : x
  2. Step 2: Convert to fraction form
    131,182.70/197,211.45 = 111,937.10/x
  3. Step 3: Cross multiply
    131,182.70x = 197,211.45 × 111,937.10
  4. Step 4: Simplify right side
    131,182.70x = 22,075,277,799.80
  5. Step 5: Solve for x
    x = 22,075,277,799.80/131,182.70
  6. Step 6: Final answer
    x = 168,278.88

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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.