Home / 189,214.48-283,815.55-76,861.46

Finding the Fourth Proportional to 189,214.48, 283,815.55 and 76,861.46

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Solution

The fourth proportional to 189,214.48, 283,815.55 and 76,861.46 is: 115,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,214.48 : 283,815.55 = 76,861.46 : x
  2. Step 2: Convert to fraction form
    189,214.48/283,815.55 = 76,861.46/x
  3. Step 3: Cross multiply
    189,214.48x = 283,815.55 × 76,861.46
  4. Step 4: Simplify right side
    189,214.48x = 21,814,476,320.51
  5. Step 5: Solve for x
    x = 21,814,476,320.51/189,214.48
  6. Step 6: Final answer
    x = 115,289.68

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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.