Home / 141,549.36-195,333.24-77,881.20

Finding the Fourth Proportional to 141,549.36, 195,333.24 and 77,881.20

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Solution

The fourth proportional to 141,549.36, 195,333.24 and 77,881.20 is: 107,473.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,549.36 : 195,333.24 = 77,881.20 : x
  2. Step 2: Convert to fraction form
    141,549.36/195,333.24 = 77,881.20/x
  3. Step 3: Cross multiply
    141,549.36x = 195,333.24 × 77,881.20
  4. Step 4: Simplify right side
    141,549.36x = 15,212,787,131.09
  5. Step 5: Solve for x
    x = 15,212,787,131.09/141,549.36
  6. Step 6: Final answer
    x = 107,473.37

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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.