Home / 141,983.87-195,941.43-77,454.21

Finding the Fourth Proportional to 141,983.87, 195,941.43 and 77,454.21

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Solution

The fourth proportional to 141,983.87, 195,941.43 and 77,454.21 is: 106,888.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,983.87 : 195,941.43 = 77,454.21 : x
  2. Step 2: Convert to fraction form
    141,983.87/195,941.43 = 77,454.21/x
  3. Step 3: Cross multiply
    141,983.87x = 195,941.43 × 77,454.21
  4. Step 4: Simplify right side
    141,983.87x = 15,176,488,666.92
  5. Step 5: Solve for x
    x = 15,176,488,666.92/141,983.87
  6. Step 6: Final answer
    x = 106,888.83

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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.