Home / 111,491.15-167,283.54-69,406.43

Finding the Fourth Proportional to 111,491.15, 167,283.54 and 69,406.43

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Solution

The fourth proportional to 111,491.15, 167,283.54 and 69,406.43 is: 104,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,491.15 : 167,283.54 = 69,406.43 : x
  2. Step 2: Convert to fraction form
    111,491.15/167,283.54 = 69,406.43/x
  3. Step 3: Cross multiply
    111,491.15x = 167,283.54 × 69,406.43
  4. Step 4: Simplify right side
    111,491.15x = 11,610,552,472.74
  5. Step 5: Solve for x
    x = 11,610,552,472.74/111,491.15
  6. Step 6: Final answer
    x = 104,138.79

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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.