Home / 105,965.60-158,867.40-53,412.80

Finding the Fourth Proportional to 105,965.60, 158,867.40 and 53,412.80

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Solution

The fourth proportional to 105,965.60, 158,867.40 and 53,412.80 is: 80,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,965.60 : 158,867.40 = 53,412.80 : x
  2. Step 2: Convert to fraction form
    105,965.60/158,867.40 = 53,412.80/x
  3. Step 3: Cross multiply
    105,965.60x = 158,867.40 × 53,412.80
  4. Step 4: Simplify right side
    105,965.60x = 8,485,552,662.72
  5. Step 5: Solve for x
    x = 8,485,552,662.72/105,965.60
  6. Step 6: Final answer
    x = 80,078.37

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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.