Home / 107,039.61-147,712.82-59,291.96

Finding the Fourth Proportional to 107,039.61, 147,712.82 and 59,291.96

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Solution

The fourth proportional to 107,039.61, 147,712.82 and 59,291.96 is: 81,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,039.61 : 147,712.82 = 59,291.96 : x
  2. Step 2: Convert to fraction form
    107,039.61/147,712.82 = 59,291.96/x
  3. Step 3: Cross multiply
    107,039.61x = 147,712.82 × 59,291.96
  4. Step 4: Simplify right side
    107,039.61x = 8,758,181,579.90
  5. Step 5: Solve for x
    x = 8,758,181,579.90/107,039.61
  6. Step 6: Final answer
    x = 81,821.87

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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.