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Finding the Fourth Proportional to 199,393.28, 275,192.88 and 123,966.08

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Solution

The fourth proportional to 199,393.28, 275,192.88 and 123,966.08 is: 171,091.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,393.28 : 275,192.88 = 123,966.08 : x
  2. Step 2: Convert to fraction form
    199,393.28/275,192.88 = 123,966.08/x
  3. Step 3: Cross multiply
    199,393.28x = 275,192.88 × 123,966.08
  4. Step 4: Simplify right side
    199,393.28x = 34,114,582,577.51
  5. Step 5: Solve for x
    x = 34,114,582,577.51/199,393.28
  6. Step 6: Final answer
    x = 171,091.94

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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.