Home / 99,704.70-149,557.05-57,714.30

Finding the Fourth Proportional to 99,704.70, 149,557.05 and 57,714.30

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Solution

The fourth proportional to 99,704.70, 149,557.05 and 57,714.30 is: 86,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,704.70 : 149,557.05 = 57,714.30 : x
  2. Step 2: Convert to fraction form
    99,704.70/149,557.05 = 57,714.30/x
  3. Step 3: Cross multiply
    99,704.70x = 149,557.05 × 57,714.30
  4. Step 4: Simplify right side
    99,704.70x = 8,631,580,450.82
  5. Step 5: Solve for x
    x = 8,631,580,450.82/99,704.70
  6. Step 6: Final answer
    x = 86,571.45

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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.