Home / 112,720.33-155,556.96-61,735.87

Finding the Fourth Proportional to 112,720.33, 155,556.96 and 61,735.87

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Solution

The fourth proportional to 112,720.33, 155,556.96 and 61,735.87 is: 85,197.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,720.33 : 155,556.96 = 61,735.87 : x
  2. Step 2: Convert to fraction form
    112,720.33/155,556.96 = 61,735.87/x
  3. Step 3: Cross multiply
    112,720.33x = 155,556.96 × 61,735.87
  4. Step 4: Simplify right side
    112,720.33x = 9,603,444,260.16
  5. Step 5: Solve for x
    x = 9,603,444,260.16/112,720.33
  6. Step 6: Final answer
    x = 85,197.09

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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.