Home / 139,375.08-192,337.38-75,714.12

Finding the Fourth Proportional to 139,375.08, 192,337.38 and 75,714.12

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Solution

The fourth proportional to 139,375.08, 192,337.38 and 75,714.12 is: 104,485.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,375.08 : 192,337.38 = 75,714.12 : x
  2. Step 2: Convert to fraction form
    139,375.08/192,337.38 = 75,714.12/x
  3. Step 3: Cross multiply
    139,375.08x = 192,337.38 × 75,714.12
  4. Step 4: Simplify right side
    139,375.08x = 14,562,655,469.81
  5. Step 5: Solve for x
    x = 14,562,655,469.81/139,375.08
  6. Step 6: Final answer
    x = 104,485.36

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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.