Home / 108,815.54-163,182.24-45,603.81

Finding the Fourth Proportional to 108,815.54, 163,182.24 and 45,603.81

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Solution

The fourth proportional to 108,815.54, 163,182.24 and 45,603.81 is: 68,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,815.54 : 163,182.24 = 45,603.81 : x
  2. Step 2: Convert to fraction form
    108,815.54/163,182.24 = 45,603.81/x
  3. Step 3: Cross multiply
    108,815.54x = 163,182.24 × 45,603.81
  4. Step 4: Simplify right side
    108,815.54x = 7,441,731,868.33
  5. Step 5: Solve for x
    x = 7,441,731,868.33/108,815.54
  6. Step 6: Final answer
    x = 68,388.51

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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.