Home / 141,561.45-195,356.16-77,900.70

Finding the Fourth Proportional to 141,561.45, 195,356.16 and 77,900.70

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Solution

The fourth proportional to 141,561.45, 195,356.16 and 77,900.70 is: 107,503.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,561.45 : 195,356.16 = 77,900.70 : x
  2. Step 2: Convert to fraction form
    141,561.45/195,356.16 = 77,900.70/x
  3. Step 3: Cross multiply
    141,561.45x = 195,356.16 × 77,900.70
  4. Step 4: Simplify right side
    141,561.45x = 15,218,381,613.31
  5. Step 5: Solve for x
    x = 15,218,381,613.31/141,561.45
  6. Step 6: Final answer
    x = 107,503.71

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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.