Home / 154,649.22-231,916.94-53,421.52

Finding the Fourth Proportional to 154,649.22, 231,916.94 and 53,421.52

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Solution

The fourth proportional to 154,649.22, 231,916.94 and 53,421.52 is: 80,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,649.22 : 231,916.94 = 53,421.52 : x
  2. Step 2: Convert to fraction form
    154,649.22/231,916.94 = 53,421.52/x
  3. Step 3: Cross multiply
    154,649.22x = 231,916.94 × 53,421.52
  4. Step 4: Simplify right side
    154,649.22x = 12,389,354,021.86
  5. Step 5: Solve for x
    x = 12,389,354,021.86/154,649.22
  6. Step 6: Final answer
    x = 80,112.62

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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.