Home / 107,986.60-161,931.30-48,791.80

Finding the Fourth Proportional to 107,986.60, 161,931.30 and 48,791.80

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Solution

The fourth proportional to 107,986.60, 161,931.30 and 48,791.80 is: 73,165.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,986.60 : 161,931.30 = 48,791.80 : x
  2. Step 2: Convert to fraction form
    107,986.60/161,931.30 = 48,791.80/x
  3. Step 3: Cross multiply
    107,986.60x = 161,931.30 × 48,791.80
  4. Step 4: Simplify right side
    107,986.60x = 7,900,919,603.34
  5. Step 5: Solve for x
    x = 7,900,919,603.34/107,986.60
  6. Step 6: Final answer
    x = 73,165.74

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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.