Home / 141,949.40-212,924.10-120,840.80

Finding the Fourth Proportional to 141,949.40, 212,924.10 and 120,840.80

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Solution

The fourth proportional to 141,949.40, 212,924.10 and 120,840.80 is: 181,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,949.40 : 212,924.10 = 120,840.80 : x
  2. Step 2: Convert to fraction form
    141,949.40/212,924.10 = 120,840.80/x
  3. Step 3: Cross multiply
    141,949.40x = 212,924.10 × 120,840.80
  4. Step 4: Simplify right side
    141,949.40x = 25,729,918,583.28
  5. Step 5: Solve for x
    x = 25,729,918,583.28/141,949.40
  6. Step 6: Final answer
    x = 181,261.20

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1.5x scale

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.