Home / 141,682.75-195,522.21-78,020.41

Finding the Fourth Proportional to 141,682.75, 195,522.21 and 78,020.41

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Solution

The fourth proportional to 141,682.75, 195,522.21 and 78,020.41 is: 107,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,682.75 : 195,522.21 = 78,020.41 : x
  2. Step 2: Convert to fraction form
    141,682.75/195,522.21 = 78,020.41/x
  3. Step 3: Cross multiply
    141,682.75x = 195,522.21 × 78,020.41
  4. Step 4: Simplify right side
    141,682.75x = 15,254,722,988.31
  5. Step 5: Solve for x
    x = 15,254,722,988.31/141,682.75
  6. Step 6: Final answer
    x = 107,668.17

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1.5x scale

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.