Home / 115,904.40-173,856.60-82,443.30

Finding the Fourth Proportional to 115,904.40, 173,856.60 and 82,443.30

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Solution

The fourth proportional to 115,904.40, 173,856.60 and 82,443.30 is: 123,664.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,904.40 : 173,856.60 = 82,443.30 : x
  2. Step 2: Convert to fraction form
    115,904.40/173,856.60 = 82,443.30/x
  3. Step 3: Cross multiply
    115,904.40x = 173,856.60 × 82,443.30
  4. Step 4: Simplify right side
    115,904.40x = 14,333,311,830.78
  5. Step 5: Solve for x
    x = 14,333,311,830.78/115,904.40
  6. Step 6: Final answer
    x = 123,664.95

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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.