Home / 99,785.06-149,598.09-57,617.31

Finding the Fourth Proportional to 99,785.06, 149,598.09 and 57,617.31

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Solution

The fourth proportional to 99,785.06, 149,598.09 and 57,617.31 is: 86,380.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,785.06 : 149,598.09 = 57,617.31 : x
  2. Step 2: Convert to fraction form
    99,785.06/149,598.09 = 57,617.31/x
  3. Step 3: Cross multiply
    99,785.06x = 149,598.09 × 57,617.31
  4. Step 4: Simplify right side
    99,785.06x = 8,619,439,877.56
  5. Step 5: Solve for x
    x = 8,619,439,877.56/99,785.06
  6. Step 6: Final answer
    x = 86,380.06

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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.