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Finding the Fourth Proportional to 158,804.46, 219,147.42 and 87,183.96

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Solution

The fourth proportional to 158,804.46, 219,147.42 and 87,183.96 is: 120,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,804.46 : 219,147.42 = 87,183.96 : x
  2. Step 2: Convert to fraction form
    158,804.46/219,147.42 = 87,183.96/x
  3. Step 3: Cross multiply
    158,804.46x = 219,147.42 × 87,183.96
  4. Step 4: Simplify right side
    158,804.46x = 19,106,139,899.38
  5. Step 5: Solve for x
    x = 19,106,139,899.38/158,804.46
  6. Step 6: Final answer
    x = 120,312.36

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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.