Home / 141,401.08-195,134.16-77,743

Finding the Fourth Proportional to 141,401.08, 195,134.16 and 77,743

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Solution

The fourth proportional to 141,401.08, 195,134.16 and 77,743 is: 107,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,401.08 : 195,134.16 = 77,743 : x
  2. Step 2: Convert to fraction form
    141,401.08/195,134.16 = 77,743/x
  3. Step 3: Cross multiply
    141,401.08x = 195,134.16 × 77,743
  4. Step 4: Simplify right side
    141,401.08x = 15,170,315,000.88
  5. Step 5: Solve for x
    x = 15,170,315,000.88/141,401.08
  6. Step 6: Final answer
    x = 107,285.71

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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.