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Finding the Fourth Proportional to 139,500.32, 192,502.26 and 75,837.56

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Solution

The fourth proportional to 139,500.32, 192,502.26 and 75,837.56 is: 104,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,500.32 : 192,502.26 = 75,837.56 : x
  2. Step 2: Convert to fraction form
    139,500.32/192,502.26 = 75,837.56/x
  3. Step 3: Cross multiply
    139,500.32x = 192,502.26 × 75,837.56
  4. Step 4: Simplify right side
    139,500.32x = 14,598,900,730.37
  5. Step 5: Solve for x
    x = 14,598,900,730.37/139,500.32
  6. Step 6: Final answer
    x = 104,651.38

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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.