Home / 166,990.36-230,361.97-105,633.16

Finding the Fourth Proportional to 166,990.36, 230,361.97 and 105,633.16

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Solution

The fourth proportional to 166,990.36, 230,361.97 and 105,633.16 is: 145,720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,990.36 : 230,361.97 = 105,633.16 : x
  2. Step 2: Convert to fraction form
    166,990.36/230,361.97 = 105,633.16/x
  3. Step 3: Cross multiply
    166,990.36x = 230,361.97 × 105,633.16
  4. Step 4: Simplify right side
    166,990.36x = 24,333,862,834.93
  5. Step 5: Solve for x
    x = 24,333,862,834.93/166,990.36
  6. Step 6: Final answer
    x = 145,720.17

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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.