Home / 139,142.41-192,017.08-75,480.66

Finding the Fourth Proportional to 139,142.41, 192,017.08 and 75,480.66

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Solution

The fourth proportional to 139,142.41, 192,017.08 and 75,480.66 is: 104,163.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,142.41 : 192,017.08 = 75,480.66 : x
  2. Step 2: Convert to fraction form
    139,142.41/192,017.08 = 75,480.66/x
  3. Step 3: Cross multiply
    139,142.41x = 192,017.08 × 75,480.66
  4. Step 4: Simplify right side
    139,142.41x = 14,493,576,024.02
  5. Step 5: Solve for x
    x = 14,493,576,024.02/139,142.41
  6. Step 6: Final answer
    x = 104,163.61

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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.