Home / 78,133.75-117,165.62-46,558.73

Finding the Fourth Proportional to 78,133.75, 117,165.62 and 46,558.73

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Solution

The fourth proportional to 78,133.75, 117,165.62 and 46,558.73 is: 69,817.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,133.75 : 117,165.62 = 46,558.73 : x
  2. Step 2: Convert to fraction form
    78,133.75/117,165.62 = 46,558.73/x
  3. Step 3: Cross multiply
    78,133.75x = 117,165.62 × 46,558.73
  4. Step 4: Simplify right side
    78,133.75x = 5,455,082,876.17
  5. Step 5: Solve for x
    x = 5,455,082,876.17/78,133.75
  6. Step 6: Final answer
    x = 69,817.24

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1.5x scale

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.