Home / 99,555.66-149,340.78-39,607.56

Finding the Fourth Proportional to 99,555.66, 149,340.78 and 39,607.56

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Solution

The fourth proportional to 99,555.66, 149,340.78 and 39,607.56 is: 59,414.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,555.66 : 149,340.78 = 39,607.56 : x
  2. Step 2: Convert to fraction form
    99,555.66/149,340.78 = 39,607.56/x
  3. Step 3: Cross multiply
    99,555.66x = 149,340.78 × 39,607.56
  4. Step 4: Simplify right side
    99,555.66x = 5,915,023,904.30
  5. Step 5: Solve for x
    x = 5,915,023,904.30/99,555.66
  6. Step 6: Final answer
    x = 59,414.24

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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.