Home / 139,479.38-192,480.65-75,817.19

Finding the Fourth Proportional to 139,479.38, 192,480.65 and 75,817.19

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Solution

The fourth proportional to 139,479.38, 192,480.65 and 75,817.19 is: 104,627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,479.38 : 192,480.65 = 75,817.19 : x
  2. Step 2: Convert to fraction form
    139,479.38/192,480.65 = 75,817.19/x
  3. Step 3: Cross multiply
    139,479.38x = 192,480.65 × 75,817.19
  4. Step 4: Simplify right side
    139,479.38x = 14,593,340,670.88
  5. Step 5: Solve for x
    x = 14,593,340,670.88/139,479.38
  6. Step 6: Final answer
    x = 104,627.23

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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.