Home / 141,513.60-195,283.84-77,850.72

Finding the Fourth Proportional to 141,513.60, 195,283.84 and 77,850.72

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Solution

The fourth proportional to 141,513.60, 195,283.84 and 77,850.72 is: 107,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,513.60 : 195,283.84 = 77,850.72 : x
  2. Step 2: Convert to fraction form
    141,513.60/195,283.84 = 77,850.72/x
  3. Step 3: Cross multiply
    141,513.60x = 195,283.84 × 77,850.72
  4. Step 4: Simplify right side
    141,513.60x = 15,202,987,548.36
  5. Step 5: Solve for x
    x = 15,202,987,548.36/141,513.60
  6. Step 6: Final answer
    x = 107,431.28

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1.5x scale

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.