Home / 91,224.96-136,837.44-72,873.60

Finding the Fourth Proportional to 91,224.96, 136,837.44 and 72,873.60

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Solution

The fourth proportional to 91,224.96, 136,837.44 and 72,873.60 is: 109,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,224.96 : 136,837.44 = 72,873.60 : x
  2. Step 2: Convert to fraction form
    91,224.96/136,837.44 = 72,873.60/x
  3. Step 3: Cross multiply
    91,224.96x = 136,837.44 × 72,873.60
  4. Step 4: Simplify right side
    91,224.96x = 9,971,836,867.58
  5. Step 5: Solve for x
    x = 9,971,836,867.58/91,224.96
  6. Step 6: Final answer
    x = 109,310.40

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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.