Home / 139,279.30-192,205.73-75,615.73

Finding the Fourth Proportional to 139,279.30, 192,205.73 and 75,615.73

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Solution

The fourth proportional to 139,279.30, 192,205.73 and 75,615.73 is: 104,349.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,279.30 : 192,205.73 = 75,615.73 : x
  2. Step 2: Convert to fraction form
    139,279.30/192,205.73 = 75,615.73/x
  3. Step 3: Cross multiply
    139,279.30x = 192,205.73 × 75,615.73
  4. Step 4: Simplify right side
    139,279.30x = 14,533,776,292.66
  5. Step 5: Solve for x
    x = 14,533,776,292.66/139,279.30
  6. Step 6: Final answer
    x = 104,349.87

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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.