Home / 112,912.38-155,810.61-61,916.94

Finding the Fourth Proportional to 112,912.38, 155,810.61 and 61,916.94

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Solution

The fourth proportional to 112,912.38, 155,810.61 and 61,916.94 is: 85,440.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,912.38 : 155,810.61 = 61,916.94 : x
  2. Step 2: Convert to fraction form
    112,912.38/155,810.61 = 61,916.94/x
  3. Step 3: Cross multiply
    112,912.38x = 155,810.61 × 61,916.94
  4. Step 4: Simplify right side
    112,912.38x = 9,647,316,190.73
  5. Step 5: Solve for x
    x = 9,647,316,190.73/112,912.38
  6. Step 6: Final answer
    x = 85,440.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.