Home / 112,888.85-155,788.36-61,906.23

Finding the Fourth Proportional to 112,888.85, 155,788.36 and 61,906.23

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Solution

The fourth proportional to 112,888.85, 155,788.36 and 61,906.23 is: 85,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,888.85 : 155,788.36 = 61,906.23 : x
  2. Step 2: Convert to fraction form
    112,888.85/155,788.36 = 61,906.23/x
  3. Step 3: Cross multiply
    112,888.85x = 155,788.36 × 61,906.23
  4. Step 4: Simplify right side
    112,888.85x = 9,644,269,890.72
  5. Step 5: Solve for x
    x = 9,644,269,890.72/112,888.85
  6. Step 6: Final answer
    x = 85,431.56

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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.