Home / 111,418.19-153,707.29-66,098.08

Finding the Fourth Proportional to 111,418.19, 153,707.29 and 66,098.08

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Solution

The fourth proportional to 111,418.19, 153,707.29 and 66,098.08 is: 91,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,418.19 : 153,707.29 = 66,098.08 : x
  2. Step 2: Convert to fraction form
    111,418.19/153,707.29 = 66,098.08/x
  3. Step 3: Cross multiply
    111,418.19x = 153,707.29 × 66,098.08
  4. Step 4: Simplify right side
    111,418.19x = 10,159,756,751.00
  5. Step 5: Solve for x
    x = 10,159,756,751.00/111,418.19
  6. Step 6: Final answer
    x = 91,185.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.