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Finding the Fourth Proportional to 179,486.31, 247,692.08 and 102,999.32

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Solution

The fourth proportional to 179,486.31, 247,692.08 and 102,999.32 is: 142,139.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,486.31 : 247,692.08 = 102,999.32 : x
  2. Step 2: Convert to fraction form
    179,486.31/247,692.08 = 102,999.32/x
  3. Step 3: Cross multiply
    179,486.31x = 247,692.08 × 102,999.32
  4. Step 4: Simplify right side
    179,486.31x = 25,512,114,828.42
  5. Step 5: Solve for x
    x = 25,512,114,828.42/179,486.31
  6. Step 6: Final answer
    x = 142,139.61

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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.