Home / 111,093.47-166,529.43-71,678.26

Finding the Fourth Proportional to 111,093.47, 166,529.43 and 71,678.26

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Solution

The fourth proportional to 111,093.47, 166,529.43 and 71,678.26 is: 107,445.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,093.47 : 166,529.43 = 71,678.26 : x
  2. Step 2: Convert to fraction form
    111,093.47/166,529.43 = 71,678.26/x
  3. Step 3: Cross multiply
    111,093.47x = 166,529.43 × 71,678.26
  4. Step 4: Simplify right side
    111,093.47x = 11,936,539,364.87
  5. Step 5: Solve for x
    x = 11,936,539,364.87/111,093.47
  6. Step 6: Final answer
    x = 107,445.92

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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.