Home / 140,050.12-193,285.50-79,629.81

Finding the Fourth Proportional to 140,050.12, 193,285.50 and 79,629.81

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Solution

The fourth proportional to 140,050.12, 193,285.50 and 79,629.81 is: 109,898.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,050.12 : 193,285.50 = 79,629.81 : x
  2. Step 2: Convert to fraction form
    140,050.12/193,285.50 = 79,629.81/x
  3. Step 3: Cross multiply
    140,050.12x = 193,285.50 × 79,629.81
  4. Step 4: Simplify right side
    140,050.12x = 15,391,288,123.97
  5. Step 5: Solve for x
    x = 15,391,288,123.97/140,050.12
  6. Step 6: Final answer
    x = 109,898.43

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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.