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Finding the Fourth Proportional to 183,693.86, 253,497.39 and 103,121.54

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Solution

The fourth proportional to 183,693.86, 253,497.39 and 103,121.54 is: 142,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,693.86 : 253,497.39 = 103,121.54 : x
  2. Step 2: Convert to fraction form
    183,693.86/253,497.39 = 103,121.54/x
  3. Step 3: Cross multiply
    183,693.86x = 253,497.39 × 103,121.54
  4. Step 4: Simplify right side
    183,693.86x = 26,141,039,975.29
  5. Step 5: Solve for x
    x = 26,141,039,975.29/183,693.86
  6. Step 6: Final answer
    x = 142,307.65

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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.