Home / 139,167.40-192,050.04-75,505.72

Finding the Fourth Proportional to 139,167.40, 192,050.04 and 75,505.72

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Solution

The fourth proportional to 139,167.40, 192,050.04 and 75,505.72 is: 104,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,167.40 : 192,050.04 = 75,505.72 : x
  2. Step 2: Convert to fraction form
    139,167.40/192,050.04 = 75,505.72/x
  3. Step 3: Cross multiply
    139,167.40x = 192,050.04 × 75,505.72
  4. Step 4: Simplify right side
    139,167.40x = 14,500,876,546.23
  5. Step 5: Solve for x
    x = 14,500,876,546.23/139,167.40
  6. Step 6: Final answer
    x = 104,197.37

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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.