Home / 143,925.95-198,618.93-80,265.21

Finding the Fourth Proportional to 143,925.95, 198,618.93 and 80,265.21

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Solution

The fourth proportional to 143,925.95, 198,618.93 and 80,265.21 is: 110,766.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,925.95 : 198,618.93 = 80,265.21 : x
  2. Step 2: Convert to fraction form
    143,925.95/198,618.93 = 80,265.21/x
  3. Step 3: Cross multiply
    143,925.95x = 198,618.93 × 80,265.21
  4. Step 4: Simplify right side
    143,925.95x = 15,942,190,126.43
  5. Step 5: Solve for x
    x = 15,942,190,126.43/143,925.95
  6. Step 6: Final answer
    x = 110,766.62

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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.