Home / 141,396.50-195,128.43-76,865.86

Finding the Fourth Proportional to 141,396.50, 195,128.43 and 76,865.86

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Solution

The fourth proportional to 141,396.50, 195,128.43 and 76,865.86 is: 106,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,396.50 : 195,128.43 = 76,865.86 : x
  2. Step 2: Convert to fraction form
    141,396.50/195,128.43 = 76,865.86/x
  3. Step 3: Cross multiply
    141,396.50x = 195,128.43 × 76,865.86
  4. Step 4: Simplify right side
    141,396.50x = 14,998,713,872.84
  5. Step 5: Solve for x
    x = 14,998,713,872.84/141,396.50
  6. Step 6: Final answer
    x = 106,075.57

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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.