Home / 141,855.72-195,758.16-77,325.56

Finding the Fourth Proportional to 141,855.72, 195,758.16 and 77,325.56

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Solution

The fourth proportional to 141,855.72, 195,758.16 and 77,325.56 is: 106,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,855.72 : 195,758.16 = 77,325.56 : x
  2. Step 2: Convert to fraction form
    141,855.72/195,758.16 = 77,325.56/x
  3. Step 3: Cross multiply
    141,855.72x = 195,758.16 × 77,325.56
  4. Step 4: Simplify right side
    141,855.72x = 15,137,109,346.57
  5. Step 5: Solve for x
    x = 15,137,109,346.57/141,855.72
  6. Step 6: Final answer
    x = 106,707.78

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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.