Home / 140,705.13-194,174.32-83,347.72

Finding the Fourth Proportional to 140,705.13, 194,174.32 and 83,347.72

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Solution

The fourth proportional to 140,705.13, 194,174.32 and 83,347.72 is: 115,020.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,705.13 : 194,174.32 = 83,347.72 : x
  2. Step 2: Convert to fraction form
    140,705.13/194,174.32 = 83,347.72/x
  3. Step 3: Cross multiply
    140,705.13x = 194,174.32 × 83,347.72
  4. Step 4: Simplify right side
    140,705.13x = 16,183,986,854.55
  5. Step 5: Solve for x
    x = 16,183,986,854.55/140,705.13
  6. Step 6: Final answer
    x = 115,020.59

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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.