Home / 197,250.76-272,200.98-107,821

Finding the Fourth Proportional to 197,250.76, 272,200.98 and 107,821

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Solution

The fourth proportional to 197,250.76, 272,200.98 and 107,821 is: 148,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,250.76 : 272,200.98 = 107,821 : x
  2. Step 2: Convert to fraction form
    197,250.76/272,200.98 = 107,821/x
  3. Step 3: Cross multiply
    197,250.76x = 272,200.98 × 107,821
  4. Step 4: Simplify right side
    197,250.76x = 29,348,981,864.58
  5. Step 5: Solve for x
    x = 29,348,981,864.58/197,250.76
  6. Step 6: Final answer
    x = 148,790.21

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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.