Home / 111,982.34-154,535.46-61,681.34

Finding the Fourth Proportional to 111,982.34, 154,535.46 and 61,681.34

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Solution

The fourth proportional to 111,982.34, 154,535.46 and 61,681.34 is: 85,120.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,982.34 : 154,535.46 = 61,681.34 : x
  2. Step 2: Convert to fraction form
    111,982.34/154,535.46 = 61,681.34/x
  3. Step 3: Cross multiply
    111,982.34x = 154,535.46 × 61,681.34
  4. Step 4: Simplify right side
    111,982.34x = 9,531,954,250.32
  5. Step 5: Solve for x
    x = 9,531,954,250.32/111,982.34
  6. Step 6: Final answer
    x = 85,120.16

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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.