Home / 107,811.70-161,717.55-102,973.30

Finding the Fourth Proportional to 107,811.70, 161,717.55 and 102,973.30

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Solution

The fourth proportional to 107,811.70, 161,717.55 and 102,973.30 is: 154,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,811.70 : 161,717.55 = 102,973.30 : x
  2. Step 2: Convert to fraction form
    107,811.70/161,717.55 = 102,973.30/x
  3. Step 3: Cross multiply
    107,811.70x = 161,717.55 × 102,973.30
  4. Step 4: Simplify right side
    107,811.70x = 16,652,589,791.42
  5. Step 5: Solve for x
    x = 16,652,589,791.42/107,811.70
  6. Step 6: Final answer
    x = 154,459.95

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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.