Home / 139,219.68-192,121.56-75,557.52

Finding the Fourth Proportional to 139,219.68, 192,121.56 and 75,557.52

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Solution

The fourth proportional to 139,219.68, 192,121.56 and 75,557.52 is: 104,268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,219.68 : 192,121.56 = 75,557.52 : x
  2. Step 2: Convert to fraction form
    139,219.68/192,121.56 = 75,557.52/x
  3. Step 3: Cross multiply
    139,219.68x = 192,121.56 × 75,557.52
  4. Step 4: Simplify right side
    139,219.68x = 14,516,228,612.13
  5. Step 5: Solve for x
    x = 14,516,228,612.13/139,219.68
  6. Step 6: Final answer
    x = 104,268.51

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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.