Home / 120,782.49-181,128.38-41,877.69

Finding the Fourth Proportional to 120,782.49, 181,128.38 and 41,877.69

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Solution

The fourth proportional to 120,782.49, 181,128.38 and 41,877.69 is: 62,800.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,782.49 : 181,128.38 = 41,877.69 : x
  2. Step 2: Convert to fraction form
    120,782.49/181,128.38 = 41,877.69/x
  3. Step 3: Cross multiply
    120,782.49x = 181,128.38 × 41,877.69
  4. Step 4: Simplify right side
    120,782.49x = 7,585,237,938.45
  5. Step 5: Solve for x
    x = 7,585,237,938.45/120,782.49
  6. Step 6: Final answer
    x = 62,800.81

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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.