Home / 139,150.11-192,027.09-75,487.90

Finding the Fourth Proportional to 139,150.11, 192,027.09 and 75,487.90

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Solution

The fourth proportional to 139,150.11, 192,027.09 and 75,487.90 is: 104,173.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,150.11 : 192,027.09 = 75,487.90 : x
  2. Step 2: Convert to fraction form
    139,150.11/192,027.09 = 75,487.90/x
  3. Step 3: Cross multiply
    139,150.11x = 192,027.09 × 75,487.90
  4. Step 4: Simplify right side
    139,150.11x = 14,495,721,767.21
  5. Step 5: Solve for x
    x = 14,495,721,767.21/139,150.11
  6. Step 6: Final answer
    x = 104,173.27

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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.