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Finding the Fourth Proportional to 139,416.37, 192,395.19 and 75,754.42

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Solution

The fourth proportional to 139,416.37, 192,395.19 and 75,754.42 is: 104,541.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,416.37 : 192,395.19 = 75,754.42 : x
  2. Step 2: Convert to fraction form
    139,416.37/192,395.19 = 75,754.42/x
  3. Step 3: Cross multiply
    139,416.37x = 192,395.19 × 75,754.42
  4. Step 4: Simplify right side
    139,416.37x = 14,574,786,029.24
  5. Step 5: Solve for x
    x = 14,574,786,029.24/139,416.37
  6. Step 6: Final answer
    x = 104,541.43

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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.