Home / 141,738.66-212,739.21-71,667.18

Finding the Fourth Proportional to 141,738.66, 212,739.21 and 71,667.18

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Solution

The fourth proportional to 141,738.66, 212,739.21 and 71,667.18 is: 107,567.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,738.66 : 212,739.21 = 71,667.18 : x
  2. Step 2: Convert to fraction form
    141,738.66/212,739.21 = 71,667.18/x
  3. Step 3: Cross multiply
    141,738.66x = 212,739.21 × 71,667.18
  4. Step 4: Simplify right side
    141,738.66x = 15,246,419,256.13
  5. Step 5: Solve for x
    x = 15,246,419,256.13/141,738.66
  6. Step 6: Final answer
    x = 107,567.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.