Home / 108,875.64-163,028.34-71,317.56

Finding the Fourth Proportional to 108,875.64, 163,028.34 and 71,317.56

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Solution

The fourth proportional to 108,875.64, 163,028.34 and 71,317.56 is: 106,789.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,875.64 : 163,028.34 = 71,317.56 : x
  2. Step 2: Convert to fraction form
    108,875.64/163,028.34 = 71,317.56/x
  3. Step 3: Cross multiply
    108,875.64x = 163,028.34 × 71,317.56
  4. Step 4: Simplify right side
    108,875.64x = 11,626,783,419.65
  5. Step 5: Solve for x
    x = 11,626,783,419.65/108,875.64
  6. Step 6: Final answer
    x = 106,789.58

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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.