Home / 112,149.36-154,755.36-61,845.12

Finding the Fourth Proportional to 112,149.36, 154,755.36 and 61,845.12

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Solution

The fourth proportional to 112,149.36, 154,755.36 and 61,845.12 is: 85,340.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,149.36 : 154,755.36 = 61,845.12 : x
  2. Step 2: Convert to fraction form
    112,149.36/154,755.36 = 61,845.12/x
  3. Step 3: Cross multiply
    112,149.36x = 154,755.36 × 61,845.12
  4. Step 4: Simplify right side
    112,149.36x = 9,570,863,809.84
  5. Step 5: Solve for x
    x = 9,570,863,809.84/112,149.36
  6. Step 6: Final answer
    x = 85,340.33

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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.