Home / 121,148.46-166,483.62-115,591.86

Finding the Fourth Proportional to 121,148.46, 166,483.62 and 115,591.86

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Solution

The fourth proportional to 121,148.46, 166,483.62 and 115,591.86 is: 158,847.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,148.46 : 166,483.62 = 115,591.86 : x
  2. Step 2: Convert to fraction form
    121,148.46/166,483.62 = 115,591.86/x
  3. Step 3: Cross multiply
    121,148.46x = 166,483.62 × 115,591.86
  4. Step 4: Simplify right side
    121,148.46x = 19,244,151,295.33
  5. Step 5: Solve for x
    x = 19,244,151,295.33/121,148.46
  6. Step 6: Final answer
    x = 158,847.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.