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Finding the Fourth Proportional to 172,694, 238,317.72 and 101,070.56

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Solution

The fourth proportional to 172,694, 238,317.72 and 101,070.56 is: 139,477.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,694 : 238,317.72 = 101,070.56 : x
  2. Step 2: Convert to fraction form
    172,694/238,317.72 = 101,070.56/x
  3. Step 3: Cross multiply
    172,694x = 238,317.72 × 101,070.56
  4. Step 4: Simplify right side
    172,694x = 24,086,905,418.32
  5. Step 5: Solve for x
    x = 24,086,905,418.32/172,694
  6. Step 6: Final answer
    x = 139,477.37

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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.