Home / 144,160.60-198,942.06-80,500.72

Finding the Fourth Proportional to 144,160.60, 198,942.06 and 80,500.72

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Solution

The fourth proportional to 144,160.60, 198,942.06 and 80,500.72 is: 111,091.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,160.60 : 198,942.06 = 80,500.72 : x
  2. Step 2: Convert to fraction form
    144,160.60/198,942.06 = 80,500.72/x
  3. Step 3: Cross multiply
    144,160.60x = 198,942.06 × 80,500.72
  4. Step 4: Simplify right side
    144,160.60x = 16,014,979,068.28
  5. Step 5: Solve for x
    x = 16,014,979,068.28/144,160.60
  6. Step 6: Final answer
    x = 111,091.23

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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.