Home / 107,349.40-161,153.70-106,571.80

Finding the Fourth Proportional to 107,349.40, 161,153.70 and 106,571.80

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Solution

The fourth proportional to 107,349.40, 161,153.70 and 106,571.80 is: 159,986.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,349.40 : 161,153.70 = 106,571.80 : x
  2. Step 2: Convert to fraction form
    107,349.40/161,153.70 = 106,571.80/x
  3. Step 3: Cross multiply
    107,349.40x = 161,153.70 × 106,571.80
  4. Step 4: Simplify right side
    107,349.40x = 17,174,439,885.66
  5. Step 5: Solve for x
    x = 17,174,439,885.66/107,349.40
  6. Step 6: Final answer
    x = 159,986.36

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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.