Home / 141,814.95-195,713.87-81,405.15

Finding the Fourth Proportional to 141,814.95, 195,713.87 and 81,405.15

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Solution

The fourth proportional to 141,814.95, 195,713.87 and 81,405.15 is: 112,344.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,814.95 : 195,713.87 = 81,405.15 : x
  2. Step 2: Convert to fraction form
    141,814.95/195,713.87 = 81,405.15/x
  3. Step 3: Cross multiply
    141,814.95x = 195,713.87 × 81,405.15
  4. Step 4: Simplify right side
    141,814.95x = 15,932,116,537.40
  5. Step 5: Solve for x
    x = 15,932,116,537.40/141,814.95
  6. Step 6: Final answer
    x = 112,344.41

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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.