Home / 143,729.70-198,347.04-83,335.56

Finding the Fourth Proportional to 143,729.70, 198,347.04 and 83,335.56

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Solution

The fourth proportional to 143,729.70, 198,347.04 and 83,335.56 is: 115,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,729.70 : 198,347.04 = 83,335.56 : x
  2. Step 2: Convert to fraction form
    143,729.70/198,347.04 = 83,335.56/x
  3. Step 3: Cross multiply
    143,729.70x = 198,347.04 × 83,335.56
  4. Step 4: Simplify right side
    143,729.70x = 16,529,361,652.74
  5. Step 5: Solve for x
    x = 16,529,361,652.74/143,729.70
  6. Step 6: Final answer
    x = 115,003.10

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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.