Home / 141,396.64-195,127.88-77,738.48

Finding the Fourth Proportional to 141,396.64, 195,127.88 and 77,738.48

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Solution

The fourth proportional to 141,396.64, 195,127.88 and 77,738.48 is: 107,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,396.64 : 195,127.88 = 77,738.48 : x
  2. Step 2: Convert to fraction form
    141,396.64/195,127.88 = 77,738.48/x
  3. Step 3: Cross multiply
    141,396.64x = 195,127.88 × 77,738.48
  4. Step 4: Simplify right side
    141,396.64x = 15,168,944,796.82
  5. Step 5: Solve for x
    x = 15,168,944,796.82/141,396.64
  6. Step 6: Final answer
    x = 107,279.39

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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.