Home / 107,335.48-161,119.86-90,772.60

Finding the Fourth Proportional to 107,335.48, 161,119.86 and 90,772.60

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Solution

The fourth proportional to 107,335.48, 161,119.86 and 90,772.60 is: 136,257.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,335.48 : 161,119.86 = 90,772.60 : x
  2. Step 2: Convert to fraction form
    107,335.48/161,119.86 = 90,772.60/x
  3. Step 3: Cross multiply
    107,335.48x = 161,119.86 × 90,772.60
  4. Step 4: Simplify right side
    107,335.48x = 14,625,268,603.84
  5. Step 5: Solve for x
    x = 14,625,268,603.84/107,335.48
  6. Step 6: Final answer
    x = 136,257.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.