Home / 141,971.67-195,893.64-85,386.69

Finding the Fourth Proportional to 141,971.67, 195,893.64 and 85,386.69

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Solution

The fourth proportional to 141,971.67, 195,893.64 and 85,386.69 is: 117,817.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,971.67 : 195,893.64 = 85,386.69 : x
  2. Step 2: Convert to fraction form
    141,971.67/195,893.64 = 85,386.69/x
  3. Step 3: Cross multiply
    141,971.67x = 195,893.64 × 85,386.69
  4. Step 4: Simplify right side
    141,971.67x = 16,726,709,511.65
  5. Step 5: Solve for x
    x = 16,726,709,511.65/141,971.67
  6. Step 6: Final answer
    x = 117,817.23

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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.