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Finding the Fourth Proportional to 193,458.09, 266,959.15 and 107,412.63

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Solution

The fourth proportional to 193,458.09, 266,959.15 and 107,412.63 is: 148,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,458.09 : 266,959.15 = 107,412.63 : x
  2. Step 2: Convert to fraction form
    193,458.09/266,959.15 = 107,412.63/x
  3. Step 3: Cross multiply
    193,458.09x = 266,959.15 × 107,412.63
  4. Step 4: Simplify right side
    193,458.09x = 28,674,783,738.63
  5. Step 5: Solve for x
    x = 28,674,783,738.63/193,458.09
  6. Step 6: Final answer
    x = 148,222.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.