Home / 141,690.25-195,533.87-78,028.50

Finding the Fourth Proportional to 141,690.25, 195,533.87 and 78,028.50

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Solution

The fourth proportional to 141,690.25, 195,533.87 and 78,028.50 is: 107,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,690.25 : 195,533.87 = 78,028.50 : x
  2. Step 2: Convert to fraction form
    141,690.25/195,533.87 = 78,028.50/x
  3. Step 3: Cross multiply
    141,690.25x = 195,533.87 × 78,028.50
  4. Step 4: Simplify right side
    141,690.25x = 15,257,214,575.30
  5. Step 5: Solve for x
    x = 15,257,214,575.30/141,690.25
  6. Step 6: Final answer
    x = 107,680.06

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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.