Home / 108,681.59-163,003.93-28,720.44

Finding the Fourth Proportional to 108,681.59, 163,003.93 and 28,720.44

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Solution

The fourth proportional to 108,681.59, 163,003.93 and 28,720.44 is: 43,075.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,681.59 : 163,003.93 = 28,720.44 : x
  2. Step 2: Convert to fraction form
    108,681.59/163,003.93 = 28,720.44/x
  3. Step 3: Cross multiply
    108,681.59x = 163,003.93 × 28,720.44
  4. Step 4: Simplify right side
    108,681.59x = 4,681,544,519.53
  5. Step 5: Solve for x
    x = 4,681,544,519.53/108,681.59
  6. Step 6: Final answer
    x = 43,075.78

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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.