Home / 120,631.04-166,361.84-75,313.16

Finding the Fourth Proportional to 120,631.04, 166,361.84 and 75,313.16

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Solution

The fourth proportional to 120,631.04, 166,361.84 and 75,313.16 is: 103,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,631.04 : 166,361.84 = 75,313.16 : x
  2. Step 2: Convert to fraction form
    120,631.04/166,361.84 = 75,313.16/x
  3. Step 3: Cross multiply
    120,631.04x = 166,361.84 × 75,313.16
  4. Step 4: Simplify right side
    120,631.04x = 12,529,234,665.44
  5. Step 5: Solve for x
    x = 12,529,234,665.44/120,631.04
  6. Step 6: Final answer
    x = 103,864.11

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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.