Home / 189,564.40-284,260.20-84,329.20

Finding the Fourth Proportional to 189,564.40, 284,260.20 and 84,329.20

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Solution

The fourth proportional to 189,564.40, 284,260.20 and 84,329.20 is: 126,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,564.40 : 284,260.20 = 84,329.20 : x
  2. Step 2: Convert to fraction form
    189,564.40/284,260.20 = 84,329.20/x
  3. Step 3: Cross multiply
    189,564.40x = 284,260.20 × 84,329.20
  4. Step 4: Simplify right side
    189,564.40x = 23,971,435,257.84
  5. Step 5: Solve for x
    x = 23,971,435,257.84/189,564.40
  6. Step 6: Final answer
    x = 126,455.36

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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.