Home / 144,057.45-198,810.55-80,404.82

Finding the Fourth Proportional to 144,057.45, 198,810.55 and 80,404.82

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Solution

The fourth proportional to 144,057.45, 198,810.55 and 80,404.82 is: 110,964.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,057.45 : 198,810.55 = 80,404.82 : x
  2. Step 2: Convert to fraction form
    144,057.45/198,810.55 = 80,404.82/x
  3. Step 3: Cross multiply
    144,057.45x = 198,810.55 × 80,404.82
  4. Step 4: Simplify right side
    144,057.45x = 15,985,326,486.85
  5. Step 5: Solve for x
    x = 15,985,326,486.85/144,057.45
  6. Step 6: Final answer
    x = 110,964.94

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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.