Home / 112,745.39-155,582.62-61,755.49

Finding the Fourth Proportional to 112,745.39, 155,582.62 and 61,755.49

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Solution

The fourth proportional to 112,745.39, 155,582.62 and 61,755.49 is: 85,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,745.39 : 155,582.62 = 61,755.49 : x
  2. Step 2: Convert to fraction form
    112,745.39/155,582.62 = 61,755.49/x
  3. Step 3: Cross multiply
    112,745.39x = 155,582.62 × 61,755.49
  4. Step 4: Simplify right side
    112,745.39x = 9,608,080,390.24
  5. Step 5: Solve for x
    x = 9,608,080,390.24/112,745.39
  6. Step 6: Final answer
    x = 85,219.27

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1.5x scale

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.