Home / 112,974.85-155,900.01-61,986.43

Finding the Fourth Proportional to 112,974.85, 155,900.01 and 61,986.43

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Solution

The fourth proportional to 112,974.85, 155,900.01 and 61,986.43 is: 85,538.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,974.85 : 155,900.01 = 61,986.43 : x
  2. Step 2: Convert to fraction form
    112,974.85/155,900.01 = 61,986.43/x
  3. Step 3: Cross multiply
    112,974.85x = 155,900.01 × 61,986.43
  4. Step 4: Simplify right side
    112,974.85x = 9,663,685,056.86
  5. Step 5: Solve for x
    x = 9,663,685,056.86/112,974.85
  6. Step 6: Final answer
    x = 85,538.37

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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.