Home / 178,784.91-268,288.11-103,940.28

Finding the Fourth Proportional to 178,784.91, 268,288.11 and 103,940.28

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Solution

The fourth proportional to 178,784.91, 268,288.11 and 103,940.28 is: 155,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,784.91 : 268,288.11 = 103,940.28 : x
  2. Step 2: Convert to fraction form
    178,784.91/268,288.11 = 103,940.28/x
  3. Step 3: Cross multiply
    178,784.91x = 268,288.11 × 103,940.28
  4. Step 4: Simplify right side
    178,784.91x = 27,885,941,274.07
  5. Step 5: Solve for x
    x = 27,885,941,274.07/178,784.91
  6. Step 6: Final answer
    x = 155,974.80

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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.