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Finding the Fourth Proportional to 151,009.90, 226,689.83 and 81,025.90

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Solution

The fourth proportional to 151,009.90, 226,689.83 and 81,025.90 is: 121,632.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,009.90 : 226,689.83 = 81,025.90 : x
  2. Step 2: Convert to fraction form
    151,009.90/226,689.83 = 81,025.90/x
  3. Step 3: Cross multiply
    151,009.90x = 226,689.83 × 81,025.90
  4. Step 4: Simplify right side
    151,009.90x = 18,367,747,496.60
  5. Step 5: Solve for x
    x = 18,367,747,496.60/151,009.90
  6. Step 6: Final answer
    x = 121,632.74

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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.