Home / 141,509.88-195,288.48-77,850.36

Finding the Fourth Proportional to 141,509.88, 195,288.48 and 77,850.36

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Solution

The fourth proportional to 141,509.88, 195,288.48 and 77,850.36 is: 107,436.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,509.88 : 195,288.48 = 77,850.36 : x
  2. Step 2: Convert to fraction form
    141,509.88/195,288.48 = 77,850.36/x
  3. Step 3: Cross multiply
    141,509.88x = 195,288.48 × 77,850.36
  4. Step 4: Simplify right side
    141,509.88x = 15,203,278,471.85
  5. Step 5: Solve for x
    x = 15,203,278,471.85/141,509.88
  6. Step 6: Final answer
    x = 107,436.16

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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.