Home / 204,044.89-306,018.73-85,718.53

Finding the Fourth Proportional to 204,044.89, 306,018.73 and 85,718.53

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Solution

The fourth proportional to 204,044.89, 306,018.73 and 85,718.53 is: 128,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,044.89 : 306,018.73 = 85,718.53 : x
  2. Step 2: Convert to fraction form
    204,044.89/306,018.73 = 85,718.53/x
  3. Step 3: Cross multiply
    204,044.89x = 306,018.73 × 85,718.53
  4. Step 4: Simplify right side
    204,044.89x = 26,231,475,688.07
  5. Step 5: Solve for x
    x = 26,231,475,688.07/204,044.89
  6. Step 6: Final answer
    x = 128,557.38

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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.