Home / 139,167.20-192,050.75-75,505.01

Finding the Fourth Proportional to 139,167.20, 192,050.75 and 75,505.01

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Solution

The fourth proportional to 139,167.20, 192,050.75 and 75,505.01 is: 104,196.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,167.20 : 192,050.75 = 75,505.01 : x
  2. Step 2: Convert to fraction form
    139,167.20/192,050.75 = 75,505.01/x
  3. Step 3: Cross multiply
    139,167.20x = 192,050.75 × 75,505.01
  4. Step 4: Simplify right side
    139,167.20x = 14,500,793,027.77
  5. Step 5: Solve for x
    x = 14,500,793,027.77/139,167.20
  6. Step 6: Final answer
    x = 104,196.91

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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.