Home / 154,155.64-231,121.32-104,111.68

Finding the Fourth Proportional to 154,155.64, 231,121.32 and 104,111.68

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Solution

The fourth proportional to 154,155.64, 231,121.32 and 104,111.68 is: 156,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,155.64 : 231,121.32 = 104,111.68 : x
  2. Step 2: Convert to fraction form
    154,155.64/231,121.32 = 104,111.68/x
  3. Step 3: Cross multiply
    154,155.64x = 231,121.32 × 104,111.68
  4. Step 4: Simplify right side
    154,155.64x = 24,062,428,909.02
  5. Step 5: Solve for x
    x = 24,062,428,909.02/154,155.64
  6. Step 6: Final answer
    x = 156,091.78

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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.