Home / 108,855.90-163,185.44-38,718.81

Finding the Fourth Proportional to 108,855.90, 163,185.44 and 38,718.81

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Solution

The fourth proportional to 108,855.90, 163,185.44 and 38,718.81 is: 58,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,855.90 : 163,185.44 = 38,718.81 : x
  2. Step 2: Convert to fraction form
    108,855.90/163,185.44 = 38,718.81/x
  3. Step 3: Cross multiply
    108,855.90x = 163,185.44 × 38,718.81
  4. Step 4: Simplify right side
    108,855.90x = 6,318,345,852.53
  5. Step 5: Solve for x
    x = 6,318,345,852.53/108,855.90
  6. Step 6: Final answer
    x = 58,043.21

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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.