Home / 139,543.20-192,567.42-75,880.44

Finding the Fourth Proportional to 139,543.20, 192,567.42 and 75,880.44

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Solution

The fourth proportional to 139,543.20, 192,567.42 and 75,880.44 is: 104,713.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,543.20 : 192,567.42 = 75,880.44 : x
  2. Step 2: Convert to fraction form
    139,543.20/192,567.42 = 75,880.44/x
  3. Step 3: Cross multiply
    139,543.20x = 192,567.42 × 75,880.44
  4. Step 4: Simplify right side
    139,543.20x = 14,612,100,559.26
  5. Step 5: Solve for x
    x = 14,612,100,559.26/139,543.20
  6. Step 6: Final answer
    x = 104,713.81

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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.