Home / 107,827.58-161,388.60-79,356.90

Finding the Fourth Proportional to 107,827.58, 161,388.60 and 79,356.90

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Solution

The fourth proportional to 107,827.58, 161,388.60 and 79,356.90 is: 118,775.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,827.58 : 161,388.60 = 79,356.90 : x
  2. Step 2: Convert to fraction form
    107,827.58/161,388.60 = 79,356.90/x
  3. Step 3: Cross multiply
    107,827.58x = 161,388.60 × 79,356.90
  4. Step 4: Simplify right side
    107,827.58x = 12,807,298,991.34
  5. Step 5: Solve for x
    x = 12,807,298,991.34/107,827.58
  6. Step 6: Final answer
    x = 118,775.73

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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.