Home / 199,173.08-274,872.44-121,681.88

Finding the Fourth Proportional to 199,173.08, 274,872.44 and 121,681.88

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Solution

The fourth proportional to 199,173.08, 274,872.44 and 121,681.88 is: 167,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,173.08 : 274,872.44 = 121,681.88 : x
  2. Step 2: Convert to fraction form
    199,173.08/274,872.44 = 121,681.88/x
  3. Step 3: Cross multiply
    199,173.08x = 274,872.44 × 121,681.88
  4. Step 4: Simplify right side
    199,173.08x = 33,446,995,259.39
  5. Step 5: Solve for x
    x = 33,446,995,259.39/199,173.08
  6. Step 6: Final answer
    x = 167,929.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.