Home / 202,905.60-280,099.40-121,262.66

Finding the Fourth Proportional to 202,905.60, 280,099.40 and 121,262.66

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Solution

The fourth proportional to 202,905.60, 280,099.40 and 121,262.66 is: 167,396.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,905.60 : 280,099.40 = 121,262.66 : x
  2. Step 2: Convert to fraction form
    202,905.60/280,099.40 = 121,262.66/x
  3. Step 3: Cross multiply
    202,905.60x = 280,099.40 × 121,262.66
  4. Step 4: Simplify right side
    202,905.60x = 33,965,598,308.40
  5. Step 5: Solve for x
    x = 33,965,598,308.40/202,905.60
  6. Step 6: Final answer
    x = 167,396.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.