Home / 139,288.08-192,217.80-75,625.68

Finding the Fourth Proportional to 139,288.08, 192,217.80 and 75,625.68

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Solution

The fourth proportional to 139,288.08, 192,217.80 and 75,625.68 is: 104,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,288.08 : 192,217.80 = 75,625.68 : x
  2. Step 2: Convert to fraction form
    139,288.08/192,217.80 = 75,625.68/x
  3. Step 3: Cross multiply
    139,288.08x = 192,217.80 × 75,625.68
  4. Step 4: Simplify right side
    139,288.08x = 14,536,601,833.10
  5. Step 5: Solve for x
    x = 14,536,601,833.10/139,288.08
  6. Step 6: Final answer
    x = 104,363.57

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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.