Home / 141,945.40-212,918.10-120,836.80

Finding the Fourth Proportional to 141,945.40, 212,918.10 and 120,836.80

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Solution

The fourth proportional to 141,945.40, 212,918.10 and 120,836.80 is: 181,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,945.40 : 212,918.10 = 120,836.80 : x
  2. Step 2: Convert to fraction form
    141,945.40/212,918.10 = 120,836.80/x
  3. Step 3: Cross multiply
    141,945.40x = 212,918.10 × 120,836.80
  4. Step 4: Simplify right side
    141,945.40x = 25,728,341,866.08
  5. Step 5: Solve for x
    x = 25,728,341,866.08/141,945.40
  6. Step 6: Final answer
    x = 181,255.20

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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.