Home / 109,678.60-151,355.22-61,933.96

Finding the Fourth Proportional to 109,678.60, 151,355.22 and 61,933.96

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Solution

The fourth proportional to 109,678.60, 151,355.22 and 61,933.96 is: 85,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,678.60 : 151,355.22 = 61,933.96 : x
  2. Step 2: Convert to fraction form
    109,678.60/151,355.22 = 61,933.96/x
  3. Step 3: Cross multiply
    109,678.60x = 151,355.22 × 61,933.96
  4. Step 4: Simplify right side
    109,678.60x = 9,374,028,141.27
  5. Step 5: Solve for x
    x = 9,374,028,141.27/109,678.60
  6. Step 6: Final answer
    x = 85,468.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.