Home / 141,820.40-195,713.34-78,158.36

Finding the Fourth Proportional to 141,820.40, 195,713.34 and 78,158.36

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Solution

The fourth proportional to 141,820.40, 195,713.34 and 78,158.36 is: 107,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,820.40 : 195,713.34 = 78,158.36 : x
  2. Step 2: Convert to fraction form
    141,820.40/195,713.34 = 78,158.36/x
  3. Step 3: Cross multiply
    141,820.40x = 195,713.34 × 78,158.36
  4. Step 4: Simplify right side
    141,820.40x = 15,296,633,684.52
  5. Step 5: Solve for x
    x = 15,296,633,684.52/141,820.40
  6. Step 6: Final answer
    x = 107,859.19

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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.