Home / 198,190.71-297,248.85-91,570.23

Finding the Fourth Proportional to 198,190.71, 297,248.85 and 91,570.23

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Solution

The fourth proportional to 198,190.71, 297,248.85 and 91,570.23 is: 137,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,190.71 : 297,248.85 = 91,570.23 : x
  2. Step 2: Convert to fraction form
    198,190.71/297,248.85 = 91,570.23/x
  3. Step 3: Cross multiply
    198,190.71x = 297,248.85 × 91,570.23
  4. Step 4: Simplify right side
    198,190.71x = 27,219,145,561.74
  5. Step 5: Solve for x
    x = 27,219,145,561.74/198,190.71
  6. Step 6: Final answer
    x = 137,338.15

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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.