Home / 139,233.20-192,139.41-75,569.63

Finding the Fourth Proportional to 139,233.20, 192,139.41 and 75,569.63

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Solution

The fourth proportional to 139,233.20, 192,139.41 and 75,569.63 is: 104,284.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,233.20 : 192,139.41 = 75,569.63 : x
  2. Step 2: Convert to fraction form
    139,233.20/192,139.41 = 75,569.63/x
  3. Step 3: Cross multiply
    139,233.20x = 192,139.41 × 75,569.63
  4. Step 4: Simplify right side
    139,233.20x = 14,519,904,602.47
  5. Step 5: Solve for x
    x = 14,519,904,602.47/139,233.20
  6. Step 6: Final answer
    x = 104,284.79

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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.