Home / 78,197.16-117,295.38-19,032.60

Finding the Fourth Proportional to 78,197.16, 117,295.38 and 19,032.60

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Solution

The fourth proportional to 78,197.16, 117,295.38 and 19,032.60 is: 28,548.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,197.16 : 117,295.38 = 19,032.60 : x
  2. Step 2: Convert to fraction form
    78,197.16/117,295.38 = 19,032.60/x
  3. Step 3: Cross multiply
    78,197.16x = 117,295.38 × 19,032.60
  4. Step 4: Simplify right side
    78,197.16x = 2,232,436,049.39
  5. Step 5: Solve for x
    x = 2,232,436,049.39/78,197.16
  6. Step 6: Final answer
    x = 28,548.81

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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.