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Finding the Fourth Proportional to 172,577.82, 238,100.31 and 100,907.10

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Solution

The fourth proportional to 172,577.82, 238,100.31 and 100,907.10 is: 139,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,577.82 : 238,100.31 = 100,907.10 : x
  2. Step 2: Convert to fraction form
    172,577.82/238,100.31 = 100,907.10/x
  3. Step 3: Cross multiply
    172,577.82x = 238,100.31 × 100,907.10
  4. Step 4: Simplify right side
    172,577.82x = 24,026,011,791.20
  5. Step 5: Solve for x
    x = 24,026,011,791.20/172,577.82
  6. Step 6: Final answer
    x = 139,218.42

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1.5x scale

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.