Home / 139,280.94-192,204.66-75,618.18

Finding the Fourth Proportional to 139,280.94, 192,204.66 and 75,618.18

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Solution

The fourth proportional to 139,280.94, 192,204.66 and 75,618.18 is: 104,351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,280.94 : 192,204.66 = 75,618.18 : x
  2. Step 2: Convert to fraction form
    139,280.94/192,204.66 = 75,618.18/x
  3. Step 3: Cross multiply
    139,280.94x = 192,204.66 × 75,618.18
  4. Step 4: Simplify right side
    139,280.94x = 14,534,166,576.72
  5. Step 5: Solve for x
    x = 14,534,166,576.72/139,280.94
  6. Step 6: Final answer
    x = 104,351.44

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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.