Home / 204,026.40-306,160.02-85,688.64

Finding the Fourth Proportional to 204,026.40, 306,160.02 and 85,688.64

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Solution

The fourth proportional to 204,026.40, 306,160.02 and 85,688.64 is: 128,583.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,026.40 : 306,160.02 = 85,688.64 : x
  2. Step 2: Convert to fraction form
    204,026.40/306,160.02 = 85,688.64/x
  3. Step 3: Cross multiply
    204,026.40x = 306,160.02 × 85,688.64
  4. Step 4: Simplify right side
    204,026.40x = 26,234,435,736.17
  5. Step 5: Solve for x
    x = 26,234,435,736.17/204,026.40
  6. Step 6: Final answer
    x = 128,583.53

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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.