Home / 112,910.67-169,218.36-46,272.78

Finding the Fourth Proportional to 112,910.67, 169,218.36 and 46,272.78

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Solution

The fourth proportional to 112,910.67, 169,218.36 and 46,272.78 is: 69,348.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,910.67 : 169,218.36 = 46,272.78 : x
  2. Step 2: Convert to fraction form
    112,910.67/169,218.36 = 46,272.78/x
  3. Step 3: Cross multiply
    112,910.67x = 169,218.36 × 46,272.78
  4. Step 4: Simplify right side
    112,910.67x = 7,830,203,944.24
  5. Step 5: Solve for x
    x = 7,830,203,944.24/112,910.67
  6. Step 6: Final answer
    x = 69,348.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.