Home / 211,361.04-316,874.81-104,781.69

Finding the Fourth Proportional to 211,361.04, 316,874.81 and 104,781.69

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Solution

The fourth proportional to 211,361.04, 316,874.81 and 104,781.69 is: 157,089.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,361.04 : 316,874.81 = 104,781.69 : x
  2. Step 2: Convert to fraction form
    211,361.04/316,874.81 = 104,781.69/x
  3. Step 3: Cross multiply
    211,361.04x = 316,874.81 × 104,781.69
  4. Step 4: Simplify right side
    211,361.04x = 33,202,677,586.32
  5. Step 5: Solve for x
    x = 33,202,677,586.32/211,361.04
  6. Step 6: Final answer
    x = 157,089.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.