Home / 120,349.80-166,118.04-84,549.42

Finding the Fourth Proportional to 120,349.80, 166,118.04 and 84,549.42

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Solution

The fourth proportional to 120,349.80, 166,118.04 and 84,549.42 is: 116,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,349.80 : 166,118.04 = 84,549.42 : x
  2. Step 2: Convert to fraction form
    120,349.80/166,118.04 = 84,549.42/x
  3. Step 3: Cross multiply
    120,349.80x = 166,118.04 × 84,549.42
  4. Step 4: Simplify right side
    120,349.80x = 14,045,183,933.54
  5. Step 5: Solve for x
    x = 14,045,183,933.54/120,349.80
  6. Step 6: Final answer
    x = 116,703.01

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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.