Home / 121,570.26-182,409.96-77,185.14

Finding the Fourth Proportional to 121,570.26, 182,409.96 and 77,185.14

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Solution

The fourth proportional to 121,570.26, 182,409.96 and 77,185.14 is: 115,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,570.26 : 182,409.96 = 77,185.14 : x
  2. Step 2: Convert to fraction form
    121,570.26/182,409.96 = 77,185.14/x
  3. Step 3: Cross multiply
    121,570.26x = 182,409.96 × 77,185.14
  4. Step 4: Simplify right side
    121,570.26x = 14,079,338,299.99
  5. Step 5: Solve for x
    x = 14,079,338,299.99/121,570.26
  6. Step 6: Final answer
    x = 115,812.36

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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.