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Finding the Fourth Proportional to 158,072.26, 218,139.87 and 86,452.06

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Solution

The fourth proportional to 158,072.26, 218,139.87 and 86,452.06 is: 119,303.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,072.26 : 218,139.87 = 86,452.06 : x
  2. Step 2: Convert to fraction form
    158,072.26/218,139.87 = 86,452.06/x
  3. Step 3: Cross multiply
    158,072.26x = 218,139.87 × 86,452.06
  4. Step 4: Simplify right side
    158,072.26x = 18,858,641,129.63
  5. Step 5: Solve for x
    x = 18,858,641,129.63/158,072.26
  6. Step 6: Final answer
    x = 119,303.93

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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.