Home / 112,370.82-155,018.43-76,085.52

Finding the Fourth Proportional to 112,370.82, 155,018.43 and 76,085.52

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Solution

The fourth proportional to 112,370.82, 155,018.43 and 76,085.52 is: 104,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,370.82 : 155,018.43 = 76,085.52 : x
  2. Step 2: Convert to fraction form
    112,370.82/155,018.43 = 76,085.52/x
  3. Step 3: Cross multiply
    112,370.82x = 155,018.43 × 76,085.52
  4. Step 4: Simplify right side
    112,370.82x = 11,794,657,856.13
  5. Step 5: Solve for x
    x = 11,794,657,856.13/112,370.82
  6. Step 6: Final answer
    x = 104,961.93

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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.