Home / 111,664.60-167,496.90-103,791.40

Finding the Fourth Proportional to 111,664.60, 167,496.90 and 103,791.40

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Solution

The fourth proportional to 111,664.60, 167,496.90 and 103,791.40 is: 155,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,664.60 : 167,496.90 = 103,791.40 : x
  2. Step 2: Convert to fraction form
    111,664.60/167,496.90 = 103,791.40/x
  3. Step 3: Cross multiply
    111,664.60x = 167,496.90 × 103,791.40
  4. Step 4: Simplify right side
    111,664.60x = 17,384,737,746.66
  5. Step 5: Solve for x
    x = 17,384,737,746.66/111,664.60
  6. Step 6: Final answer
    x = 155,687.10

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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.