Home / 78,190.25-117,267.35-46,609.20

Finding the Fourth Proportional to 78,190.25, 117,267.35 and 46,609.20

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Solution

The fourth proportional to 78,190.25, 117,267.35 and 46,609.20 is: 69,903.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,190.25 : 117,267.35 = 46,609.20 : x
  2. Step 2: Convert to fraction form
    78,190.25/117,267.35 = 46,609.20/x
  3. Step 3: Cross multiply
    78,190.25x = 117,267.35 × 46,609.20
  4. Step 4: Simplify right side
    78,190.25x = 5,465,737,136.57
  5. Step 5: Solve for x
    x = 5,465,737,136.57/78,190.25
  6. Step 6: Final answer
    x = 69,903.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.