Home / 141,698.20-212,720.10-140,661.40

Finding the Fourth Proportional to 141,698.20, 212,720.10 and 140,661.40

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Solution

The fourth proportional to 141,698.20, 212,720.10 and 140,661.40 is: 211,163.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,698.20 : 212,720.10 = 140,661.40 : x
  2. Step 2: Convert to fraction form
    141,698.20/212,720.10 = 140,661.40/x
  3. Step 3: Cross multiply
    141,698.20x = 212,720.10 × 140,661.40
  4. Step 4: Simplify right side
    141,698.20x = 29,921,507,074.14
  5. Step 5: Solve for x
    x = 29,921,507,074.14/141,698.20
  6. Step 6: Final answer
    x = 211,163.64

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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.