Home / 112,932.75-155,875.52-76,695.51

Finding the Fourth Proportional to 112,932.75, 155,875.52 and 76,695.51

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Solution

The fourth proportional to 112,932.75, 155,875.52 and 76,695.51 is: 105,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,932.75 : 155,875.52 = 76,695.51 : x
  2. Step 2: Convert to fraction form
    112,932.75/155,875.52 = 76,695.51/x
  3. Step 3: Cross multiply
    112,932.75x = 155,875.52 × 76,695.51
  4. Step 4: Simplify right side
    112,932.75x = 11,954,952,119.44
  5. Step 5: Solve for x
    x = 11,954,952,119.44/112,932.75
  6. Step 6: Final answer
    x = 105,859.04

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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.