Home / 131,348.70-197,023.05-121,211.10

Finding the Fourth Proportional to 131,348.70, 197,023.05 and 121,211.10

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Solution

The fourth proportional to 131,348.70, 197,023.05 and 121,211.10 is: 181,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,348.70 : 197,023.05 = 121,211.10 : x
  2. Step 2: Convert to fraction form
    131,348.70/197,023.05 = 121,211.10/x
  3. Step 3: Cross multiply
    131,348.70x = 197,023.05 × 121,211.10
  4. Step 4: Simplify right side
    131,348.70x = 23,881,380,615.86
  5. Step 5: Solve for x
    x = 23,881,380,615.86/131,348.70
  6. Step 6: Final answer
    x = 181,816.65

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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.