Home / 197,590.50-272,600.47-129,644.97

Finding the Fourth Proportional to 197,590.50, 272,600.47 and 129,644.97

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Solution

The fourth proportional to 197,590.50, 272,600.47 and 129,644.97 is: 178,861.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,590.50 : 272,600.47 = 129,644.97 : x
  2. Step 2: Convert to fraction form
    197,590.50/272,600.47 = 129,644.97/x
  3. Step 3: Cross multiply
    197,590.50x = 272,600.47 × 129,644.97
  4. Step 4: Simplify right side
    197,590.50x = 35,341,278,894.94
  5. Step 5: Solve for x
    x = 35,341,278,894.94/197,590.50
  6. Step 6: Final answer
    x = 178,861.23

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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.