Home / 107,261.12-147,982.07-66,959.58

Finding the Fourth Proportional to 107,261.12, 147,982.07 and 66,959.58

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Solution

The fourth proportional to 107,261.12, 147,982.07 and 66,959.58 is: 92,380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,261.12 : 147,982.07 = 66,959.58 : x
  2. Step 2: Convert to fraction form
    107,261.12/147,982.07 = 66,959.58/x
  3. Step 3: Cross multiply
    107,261.12x = 147,982.07 × 66,959.58
  4. Step 4: Simplify right side
    107,261.12x = 9,908,817,254.73
  5. Step 5: Solve for x
    x = 9,908,817,254.73/107,261.12
  6. Step 6: Final answer
    x = 92,380.33

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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.