Home / 139,133.28-192,004.26-75,471.08

Finding the Fourth Proportional to 139,133.28, 192,004.26 and 75,471.08

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Solution

The fourth proportional to 139,133.28, 192,004.26 and 75,471.08 is: 104,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,133.28 : 192,004.26 = 75,471.08 : x
  2. Step 2: Convert to fraction form
    139,133.28/192,004.26 = 75,471.08/x
  3. Step 3: Cross multiply
    139,133.28x = 192,004.26 × 75,471.08
  4. Step 4: Simplify right side
    139,133.28x = 14,490,768,866.80
  5. Step 5: Solve for x
    x = 14,490,768,866.80/139,133.28
  6. Step 6: Final answer
    x = 104,150.27

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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.