Home / 141,835.03-195,733.53-78,172.99

Finding the Fourth Proportional to 141,835.03, 195,733.53 and 78,172.99

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Solution

The fourth proportional to 141,835.03, 195,733.53 and 78,172.99 is: 107,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,835.03 : 195,733.53 = 78,172.99 : x
  2. Step 2: Convert to fraction form
    141,835.03/195,733.53 = 78,172.99/x
  3. Step 3: Cross multiply
    141,835.03x = 195,733.53 × 78,172.99
  4. Step 4: Simplify right side
    141,835.03x = 15,301,073,913.82
  5. Step 5: Solve for x
    x = 15,301,073,913.82/141,835.03
  6. Step 6: Final answer
    x = 107,879.38

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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.