Home / 140,337.28-193,658.40-76,663.36

Finding the Fourth Proportional to 140,337.28, 193,658.40 and 76,663.36

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Solution

The fourth proportional to 140,337.28, 193,658.40 and 76,663.36 is: 105,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,337.28 : 193,658.40 = 76,663.36 : x
  2. Step 2: Convert to fraction form
    140,337.28/193,658.40 = 76,663.36/x
  3. Step 3: Cross multiply
    140,337.28x = 193,658.40 × 76,663.36
  4. Step 4: Simplify right side
    140,337.28x = 14,846,503,636.22
  5. Step 5: Solve for x
    x = 14,846,503,636.22/140,337.28
  6. Step 6: Final answer
    x = 105,791.59

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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.