Home / 204,043.60-306,065.40-121,099.60

Finding the Fourth Proportional to 204,043.60, 306,065.40 and 121,099.60

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Solution

The fourth proportional to 204,043.60, 306,065.40 and 121,099.60 is: 181,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,043.60 : 306,065.40 = 121,099.60 : x
  2. Step 2: Convert to fraction form
    204,043.60/306,065.40 = 121,099.60/x
  3. Step 3: Cross multiply
    204,043.60x = 306,065.40 × 121,099.60
  4. Step 4: Simplify right side
    204,043.60x = 37,064,397,513.84
  5. Step 5: Solve for x
    x = 37,064,397,513.84/204,043.60
  6. Step 6: Final answer
    x = 181,649.40

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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.