Home / 141,483.88-195,243.64-77,821.66

Finding the Fourth Proportional to 141,483.88, 195,243.64 and 77,821.66

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Solution

The fourth proportional to 141,483.88, 195,243.64 and 77,821.66 is: 107,391.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,483.88 : 195,243.64 = 77,821.66 : x
  2. Step 2: Convert to fraction form
    141,483.88/195,243.64 = 77,821.66/x
  3. Step 3: Cross multiply
    141,483.88x = 195,243.64 × 77,821.66
  4. Step 4: Simplify right side
    141,483.88x = 15,194,184,169.24
  5. Step 5: Solve for x
    x = 15,194,184,169.24/141,483.88
  6. Step 6: Final answer
    x = 107,391.63

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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.