Home / 141,453.21-195,201.54-77,791

Finding the Fourth Proportional to 141,453.21, 195,201.54 and 77,791

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Solution

The fourth proportional to 141,453.21, 195,201.54 and 77,791 is: 107,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,453.21 : 195,201.54 = 77,791 : x
  2. Step 2: Convert to fraction form
    141,453.21/195,201.54 = 77,791/x
  3. Step 3: Cross multiply
    141,453.21x = 195,201.54 × 77,791
  4. Step 4: Simplify right side
    141,453.21x = 15,184,922,609.19
  5. Step 5: Solve for x
    x = 15,184,922,609.19/141,453.21
  6. Step 6: Final answer
    x = 107,349.44

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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.