Home / 120,945.43-181,434.57-42,049.45

Finding the Fourth Proportional to 120,945.43, 181,434.57 and 42,049.45

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Solution

The fourth proportional to 120,945.43, 181,434.57 and 42,049.45 is: 63,079.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,945.43 : 181,434.57 = 42,049.45 : x
  2. Step 2: Convert to fraction form
    120,945.43/181,434.57 = 42,049.45/x
  3. Step 3: Cross multiply
    120,945.43x = 181,434.57 × 42,049.45
  4. Step 4: Simplify right side
    120,945.43x = 7,629,223,879.49
  5. Step 5: Solve for x
    x = 7,629,223,879.49/120,945.43
  6. Step 6: Final answer
    x = 63,079.89

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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.