Home / 198,811.47-273,981.90-142,124.43

Finding the Fourth Proportional to 198,811.47, 273,981.90 and 142,124.43

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Solution

The fourth proportional to 198,811.47, 273,981.90 and 142,124.43 is: 195,861.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,811.47 : 273,981.90 = 142,124.43 : x
  2. Step 2: Convert to fraction form
    198,811.47/273,981.90 = 142,124.43/x
  3. Step 3: Cross multiply
    198,811.47x = 273,981.90 × 142,124.43
  4. Step 4: Simplify right side
    198,811.47x = 38,939,521,367.82
  5. Step 5: Solve for x
    x = 38,939,521,367.82/198,811.47
  6. Step 6: Final answer
    x = 195,861.54

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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.