Home / 121,134.60-181,442.70-108,001.80

Finding the Fourth Proportional to 121,134.60, 181,442.70 and 108,001.80

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Solution

The fourth proportional to 121,134.60, 181,442.70 and 108,001.80 is: 161,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,134.60 : 181,442.70 = 108,001.80 : x
  2. Step 2: Convert to fraction form
    121,134.60/181,442.70 = 108,001.80/x
  3. Step 3: Cross multiply
    121,134.60x = 181,442.70 × 108,001.80
  4. Step 4: Simplify right side
    121,134.60x = 19,596,138,196.86
  5. Step 5: Solve for x
    x = 19,596,138,196.86/121,134.60
  6. Step 6: Final answer
    x = 161,771.60

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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.