Home / 107,933.80-161,900.70-42,269.80

Finding the Fourth Proportional to 107,933.80, 161,900.70 and 42,269.80

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Solution

The fourth proportional to 107,933.80, 161,900.70 and 42,269.80 is: 63,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,933.80 : 161,900.70 = 42,269.80 : x
  2. Step 2: Convert to fraction form
    107,933.80/161,900.70 = 42,269.80/x
  3. Step 3: Cross multiply
    107,933.80x = 161,900.70 × 42,269.80
  4. Step 4: Simplify right side
    107,933.80x = 6,843,510,208.86
  5. Step 5: Solve for x
    x = 6,843,510,208.86/107,933.80
  6. Step 6: Final answer
    x = 63,404.70

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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.