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Finding the Fourth Proportional to 161,438.83, 222,779.98 and 88,834.93

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Solution

The fourth proportional to 161,438.83, 222,779.98 and 88,834.93 is: 122,589.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,438.83 : 222,779.98 = 88,834.93 : x
  2. Step 2: Convert to fraction form
    161,438.83/222,779.98 = 88,834.93/x
  3. Step 3: Cross multiply
    161,438.83x = 222,779.98 × 88,834.93
  4. Step 4: Simplify right side
    161,438.83x = 19,790,643,928.70
  5. Step 5: Solve for x
    x = 19,790,643,928.70/161,438.83
  6. Step 6: Final answer
    x = 122,589.12

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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.