Home / 141,651.82-195,479.54-77,121.06

Finding the Fourth Proportional to 141,651.82, 195,479.54 and 77,121.06

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Solution

The fourth proportional to 141,651.82, 195,479.54 and 77,121.06 is: 106,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,651.82 : 195,479.54 = 77,121.06 : x
  2. Step 2: Convert to fraction form
    141,651.82/195,479.54 = 77,121.06/x
  3. Step 3: Cross multiply
    141,651.82x = 195,479.54 × 77,121.06
  4. Step 4: Simplify right side
    141,651.82x = 15,075,588,503.66
  5. Step 5: Solve for x
    x = 15,075,588,503.66/141,651.82
  6. Step 6: Final answer
    x = 106,427.08

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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.