Home / 107,968.20-161,733.60-61,166.40

Finding the Fourth Proportional to 107,968.20, 161,733.60 and 61,166.40

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Solution

The fourth proportional to 107,968.20, 161,733.60 and 61,166.40 is: 91,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,968.20 : 161,733.60 = 61,166.40 : x
  2. Step 2: Convert to fraction form
    107,968.20/161,733.60 = 61,166.40/x
  3. Step 3: Cross multiply
    107,968.20x = 161,733.60 × 61,166.40
  4. Step 4: Simplify right side
    107,968.20x = 9,892,662,071.04
  5. Step 5: Solve for x
    x = 9,892,662,071.04/107,968.20
  6. Step 6: Final answer
    x = 91,625.70

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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.