Home / 120,418.04-166,124.52-84,631.43

Finding the Fourth Proportional to 120,418.04, 166,124.52 and 84,631.43

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Solution

The fourth proportional to 120,418.04, 166,124.52 and 84,631.43 is: 116,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,418.04 : 166,124.52 = 84,631.43 : x
  2. Step 2: Convert to fraction form
    120,418.04/166,124.52 = 84,631.43/x
  3. Step 3: Cross multiply
    120,418.04x = 166,124.52 × 84,631.43
  4. Step 4: Simplify right side
    120,418.04x = 14,059,356,100.97
  5. Step 5: Solve for x
    x = 14,059,356,100.97/120,418.04
  6. Step 6: Final answer
    x = 116,754.56

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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.