Home / 107,215.13-147,860.03-66,932.61

Finding the Fourth Proportional to 107,215.13, 147,860.03 and 66,932.61

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Solution

The fourth proportional to 107,215.13, 147,860.03 and 66,932.61 is: 92,306.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,215.13 : 147,860.03 = 66,932.61 : x
  2. Step 2: Convert to fraction form
    107,215.13/147,860.03 = 66,932.61/x
  3. Step 3: Cross multiply
    107,215.13x = 147,860.03 × 66,932.61
  4. Step 4: Simplify right side
    107,215.13x = 9,896,657,722.58
  5. Step 5: Solve for x
    x = 9,896,657,722.58/107,215.13
  6. Step 6: Final answer
    x = 92,306.54

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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.