Home / 140,174.88-193,438.30-76,513.76

Finding the Fourth Proportional to 140,174.88, 193,438.30 and 76,513.76

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Solution

The fourth proportional to 140,174.88, 193,438.30 and 76,513.76 is: 105,587.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,174.88 : 193,438.30 = 76,513.76 : x
  2. Step 2: Convert to fraction form
    140,174.88/193,438.30 = 76,513.76/x
  3. Step 3: Cross multiply
    140,174.88x = 193,438.30 × 76,513.76
  4. Step 4: Simplify right side
    140,174.88x = 14,800,691,661.01
  5. Step 5: Solve for x
    x = 14,800,691,661.01/140,174.88
  6. Step 6: Final answer
    x = 105,587.33

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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.