Home / 198,005.69-273,148.12-141,449.87

Finding the Fourth Proportional to 198,005.69, 273,148.12 and 141,449.87

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Solution

The fourth proportional to 198,005.69, 273,148.12 and 141,449.87 is: 195,129.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,005.69 : 273,148.12 = 141,449.87 : x
  2. Step 2: Convert to fraction form
    198,005.69/273,148.12 = 141,449.87/x
  3. Step 3: Cross multiply
    198,005.69x = 273,148.12 × 141,449.87
  4. Step 4: Simplify right side
    198,005.69x = 38,636,766,064.74
  5. Step 5: Solve for x
    x = 38,636,766,064.74/198,005.69
  6. Step 6: Final answer
    x = 195,129.57

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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.