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Finding the Fourth Proportional to 139,272.74, 192,197.32 and 75,610.88

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Solution

The fourth proportional to 139,272.74, 192,197.32 and 75,610.88 is: 104,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,272.74 : 192,197.32 = 75,610.88 : x
  2. Step 2: Convert to fraction form
    139,272.74/192,197.32 = 75,610.88/x
  3. Step 3: Cross multiply
    139,272.74x = 192,197.32 × 75,610.88
  4. Step 4: Simplify right side
    139,272.74x = 14,532,208,498.84
  5. Step 5: Solve for x
    x = 14,532,208,498.84/139,272.74
  6. Step 6: Final answer
    x = 104,343.52

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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.