Home / 143,787.33-198,403.18-83,346.18

Finding the Fourth Proportional to 143,787.33, 198,403.18 and 83,346.18

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Solution

The fourth proportional to 143,787.33, 198,403.18 and 83,346.18 is: 115,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,787.33 : 198,403.18 = 83,346.18 : x
  2. Step 2: Convert to fraction form
    143,787.33/198,403.18 = 83,346.18/x
  3. Step 3: Cross multiply
    143,787.33x = 198,403.18 × 83,346.18
  4. Step 4: Simplify right side
    143,787.33x = 16,536,147,152.85
  5. Step 5: Solve for x
    x = 16,536,147,152.85/143,787.33
  6. Step 6: Final answer
    x = 115,004.20

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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.