Home / 139,445.06-192,435.66-75,782.85

Finding the Fourth Proportional to 139,445.06, 192,435.66 and 75,782.85

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Solution

The fourth proportional to 139,445.06, 192,435.66 and 75,782.85 is: 104,581.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,445.06 : 192,435.66 = 75,782.85 : x
  2. Step 2: Convert to fraction form
    139,445.06/192,435.66 = 75,782.85/x
  3. Step 3: Cross multiply
    139,445.06x = 192,435.66 × 75,782.85
  4. Step 4: Simplify right side
    139,445.06x = 14,583,322,756.43
  5. Step 5: Solve for x
    x = 14,583,322,756.43/139,445.06
  6. Step 6: Final answer
    x = 104,581.14

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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.