Home / 143,787.83-198,403.88-83,346.68

Finding the Fourth Proportional to 143,787.83, 198,403.88 and 83,346.68

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Solution

The fourth proportional to 143,787.83, 198,403.88 and 83,346.68 is: 115,004.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,787.83 : 198,403.88 = 83,346.68 : x
  2. Step 2: Convert to fraction form
    143,787.83/198,403.88 = 83,346.68/x
  3. Step 3: Cross multiply
    143,787.83x = 198,403.88 × 83,346.68
  4. Step 4: Simplify right side
    143,787.83x = 16,536,303,288.37
  5. Step 5: Solve for x
    x = 16,536,303,288.37/143,787.83
  6. Step 6: Final answer
    x = 115,004.89

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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.