Home / 111,903,142.15-167,067,896.57-85,503,815.64

Finding the Fourth Proportional to 111,903,142.15, 167,067,896.57 and 85,503,815.64

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Solution

The fourth proportional to 111,903,142.15, 167,067,896.57 and 85,503,815.64 is: 127,654,526.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,903,142.15 : 167,067,896.57 = 85,503,815.64 : x
  2. Step 2: Convert to fraction form
    111,903,142.15/167,067,896.57 = 85,503,815.64/x
  3. Step 3: Cross multiply
    111,903,142.15x = 167,067,896.57 × 85,503,815.64
  4. Step 4: Simplify right side
    111,903,142.15x = 14,284,942,627,588,414
  5. Step 5: Solve for x
    x = 14,284,942,627,588,414/111,903,142.15
  6. Step 6: Final answer
    x = 127,654,526.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.