Home / 189,007.18-283,412.34-89,140.56

Finding the Fourth Proportional to 189,007.18, 283,412.34 and 89,140.56

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Solution

The fourth proportional to 189,007.18, 283,412.34 and 89,140.56 is: 133,664.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,007.18 : 283,412.34 = 89,140.56 : x
  2. Step 2: Convert to fraction form
    189,007.18/283,412.34 = 89,140.56/x
  3. Step 3: Cross multiply
    189,007.18x = 283,412.34 × 89,140.56
  4. Step 4: Simplify right side
    189,007.18x = 25,263,535,229.91
  5. Step 5: Solve for x
    x = 25,263,535,229.91/189,007.18
  6. Step 6: Final answer
    x = 133,664.42

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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.