Home / 139,810.20-192,940.38-76,149.24

Finding the Fourth Proportional to 139,810.20, 192,940.38 and 76,149.24

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Solution

The fourth proportional to 139,810.20, 192,940.38 and 76,149.24 is: 105,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,810.20 : 192,940.38 = 76,149.24 : x
  2. Step 2: Convert to fraction form
    139,810.20/192,940.38 = 76,149.24/x
  3. Step 3: Cross multiply
    139,810.20x = 192,940.38 × 76,149.24
  4. Step 4: Simplify right side
    139,810.20x = 14,692,263,302.31
  5. Step 5: Solve for x
    x = 14,692,263,302.31/139,810.20
  6. Step 6: Final answer
    x = 105,087.21

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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.