Home / 121,018.10-181,570.35-50,918.90

Finding the Fourth Proportional to 121,018.10, 181,570.35 and 50,918.90

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Solution

The fourth proportional to 121,018.10, 181,570.35 and 50,918.90 is: 76,396.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,018.10 : 181,570.35 = 50,918.90 : x
  2. Step 2: Convert to fraction form
    121,018.10/181,570.35 = 50,918.90/x
  3. Step 3: Cross multiply
    121,018.10x = 181,570.35 × 50,918.90
  4. Step 4: Simplify right side
    121,018.10x = 9,245,362,494.62
  5. Step 5: Solve for x
    x = 9,245,362,494.62/121,018.10
  6. Step 6: Final answer
    x = 76,396.53

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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.