Home / 107,489.18-148,376.41-71,666.12

Finding the Fourth Proportional to 107,489.18, 148,376.41 and 71,666.12

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Solution

The fourth proportional to 107,489.18, 148,376.41 and 71,666.12 is: 98,926.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,489.18 : 148,376.41 = 71,666.12 : x
  2. Step 2: Convert to fraction form
    107,489.18/148,376.41 = 71,666.12/x
  3. Step 3: Cross multiply
    107,489.18x = 148,376.41 × 71,666.12
  4. Step 4: Simplify right side
    107,489.18x = 10,633,561,796.00
  5. Step 5: Solve for x
    x = 10,633,561,796.00/107,489.18
  6. Step 6: Final answer
    x = 98,926.81

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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.