Home / 139,660.76-192,735.90-76,002.66

Finding the Fourth Proportional to 139,660.76, 192,735.90 and 76,002.66

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Solution

The fourth proportional to 139,660.76, 192,735.90 and 76,002.66 is: 104,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,660.76 : 192,735.90 = 76,002.66 : x
  2. Step 2: Convert to fraction form
    139,660.76/192,735.90 = 76,002.66/x
  3. Step 3: Cross multiply
    139,660.76x = 192,735.90 × 76,002.66
  4. Step 4: Simplify right side
    139,660.76x = 14,648,441,077.49
  5. Step 5: Solve for x
    x = 14,648,441,077.49/139,660.76
  6. Step 6: Final answer
    x = 104,885.88

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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.