Home / 121,090.05-181,627.70-45,173.97

Finding the Fourth Proportional to 121,090.05, 181,627.70 and 45,173.97

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Solution

The fourth proportional to 121,090.05, 181,627.70 and 45,173.97 is: 67,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,090.05 : 181,627.70 = 45,173.97 : x
  2. Step 2: Convert to fraction form
    121,090.05/181,627.70 = 45,173.97/x
  3. Step 3: Cross multiply
    121,090.05x = 181,627.70 × 45,173.97
  4. Step 4: Simplify right side
    121,090.05x = 8,204,844,045.10
  5. Step 5: Solve for x
    x = 8,204,844,045.10/121,090.05
  6. Step 6: Final answer
    x = 67,758.20

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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.