Home / 141,601.32-195,409.87-77,938.66

Finding the Fourth Proportional to 141,601.32, 195,409.87 and 77,938.66

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Solution

The fourth proportional to 141,601.32, 195,409.87 and 77,938.66 is: 107,555.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,601.32 : 195,409.87 = 77,938.66 : x
  2. Step 2: Convert to fraction form
    141,601.32/195,409.87 = 77,938.66/x
  3. Step 3: Cross multiply
    141,601.32x = 195,409.87 × 77,938.66
  4. Step 4: Simplify right side
    141,601.32x = 15,229,983,418.57
  5. Step 5: Solve for x
    x = 15,229,983,418.57/141,601.32
  6. Step 6: Final answer
    x = 107,555.38

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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.