Home / 189,736.40-284,604.60-71,434.28

Finding the Fourth Proportional to 189,736.40, 284,604.60 and 71,434.28

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Solution

The fourth proportional to 189,736.40, 284,604.60 and 71,434.28 is: 107,151.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,736.40 : 284,604.60 = 71,434.28 : x
  2. Step 2: Convert to fraction form
    189,736.40/284,604.60 = 71,434.28/x
  3. Step 3: Cross multiply
    189,736.40x = 284,604.60 × 71,434.28
  4. Step 4: Simplify right side
    189,736.40x = 20,330,524,685.69
  5. Step 5: Solve for x
    x = 20,330,524,685.69/189,736.40
  6. Step 6: Final answer
    x = 107,151.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.