Home / 144,115.86-198,878.04-80,454.72

Finding the Fourth Proportional to 144,115.86, 198,878.04 and 80,454.72

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Solution

The fourth proportional to 144,115.86, 198,878.04 and 80,454.72 is: 111,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,115.86 : 198,878.04 = 80,454.72 : x
  2. Step 2: Convert to fraction form
    144,115.86/198,878.04 = 80,454.72/x
  3. Step 3: Cross multiply
    144,115.86x = 198,878.04 × 80,454.72
  4. Step 4: Simplify right side
    144,115.86x = 16,000,677,022.35
  5. Step 5: Solve for x
    x = 16,000,677,022.35/144,115.86
  6. Step 6: Final answer
    x = 111,026.48

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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.