Home / 141,796.55-195,678.30-78,134.36

Finding the Fourth Proportional to 141,796.55, 195,678.30 and 78,134.36

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Solution

The fourth proportional to 141,796.55, 195,678.30 and 78,134.36 is: 107,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,796.55 : 195,678.30 = 78,134.36 : x
  2. Step 2: Convert to fraction form
    141,796.55/195,678.30 = 78,134.36/x
  3. Step 3: Cross multiply
    141,796.55x = 195,678.30 × 78,134.36
  4. Step 4: Simplify right side
    141,796.55x = 15,289,199,225.58
  5. Step 5: Solve for x
    x = 15,289,199,225.58/141,796.55
  6. Step 6: Final answer
    x = 107,824.90

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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.