Home / 107,889.93-161,815.41-28,985.69

Finding the Fourth Proportional to 107,889.93, 161,815.41 and 28,985.69

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Solution

The fourth proportional to 107,889.93, 161,815.41 and 28,985.69 is: 43,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,889.93 : 161,815.41 = 28,985.69 : x
  2. Step 2: Convert to fraction form
    107,889.93/161,815.41 = 28,985.69/x
  3. Step 3: Cross multiply
    107,889.93x = 161,815.41 × 28,985.69
  4. Step 4: Simplify right side
    107,889.93x = 4,690,331,716.02
  5. Step 5: Solve for x
    x = 4,690,331,716.02/107,889.93
  6. Step 6: Final answer
    x = 43,473.30

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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.