Home / 121,189.14-181,812.56-61,069.90

Finding the Fourth Proportional to 121,189.14, 181,812.56 and 61,069.90

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Solution

The fourth proportional to 121,189.14, 181,812.56 and 61,069.90 is: 91,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,189.14 : 181,812.56 = 61,069.90 : x
  2. Step 2: Convert to fraction form
    121,189.14/181,812.56 = 61,069.90/x
  3. Step 3: Cross multiply
    121,189.14x = 181,812.56 × 61,069.90
  4. Step 4: Simplify right side
    121,189.14x = 11,103,274,857.94
  5. Step 5: Solve for x
    x = 11,103,274,857.94/121,189.14
  6. Step 6: Final answer
    x = 91,619.39

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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.