Home / 167,688.60-251,288.27-77,758.75

Finding the Fourth Proportional to 167,688.60, 251,288.27 and 77,758.75

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Solution

The fourth proportional to 167,688.60, 251,288.27 and 77,758.75 is: 116,524.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,688.60 : 251,288.27 = 77,758.75 : x
  2. Step 2: Convert to fraction form
    167,688.60/251,288.27 = 77,758.75/x
  3. Step 3: Cross multiply
    167,688.60x = 251,288.27 × 77,758.75
  4. Step 4: Simplify right side
    167,688.60x = 19,539,861,764.86
  5. Step 5: Solve for x
    x = 19,539,861,764.86/167,688.60
  6. Step 6: Final answer
    x = 116,524.69

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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.