Home / 178,917.12-246,960.64-115,254.72

Finding the Fourth Proportional to 178,917.12, 246,960.64 and 115,254.72

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Solution

The fourth proportional to 178,917.12, 246,960.64 and 115,254.72 is: 159,086.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,917.12 : 246,960.64 = 115,254.72 : x
  2. Step 2: Convert to fraction form
    178,917.12/246,960.64 = 115,254.72/x
  3. Step 3: Cross multiply
    178,917.12x = 246,960.64 × 115,254.72
  4. Step 4: Simplify right side
    178,917.12x = 28,463,379,414.22
  5. Step 5: Solve for x
    x = 28,463,379,414.22/178,917.12
  6. Step 6: Final answer
    x = 159,086.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.