Home / 178,823.79-268,255.13-66,490.83

Finding the Fourth Proportional to 178,823.79, 268,255.13 and 66,490.83

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Solution

The fourth proportional to 178,823.79, 268,255.13 and 66,490.83 is: 99,743.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,823.79 : 268,255.13 = 66,490.83 : x
  2. Step 2: Convert to fraction form
    178,823.79/268,255.13 = 66,490.83/x
  3. Step 3: Cross multiply
    178,823.79x = 268,255.13 × 66,490.83
  4. Step 4: Simplify right side
    178,823.79x = 17,836,505,913.00
  5. Step 5: Solve for x
    x = 17,836,505,913.00/178,823.79
  6. Step 6: Final answer
    x = 99,743.47

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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.