Home / 111,982.08-154,535.28-61,681.08

Finding the Fourth Proportional to 111,982.08, 154,535.28 and 61,681.08

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Solution

The fourth proportional to 111,982.08, 154,535.28 and 61,681.08 is: 85,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,982.08 : 154,535.28 = 61,681.08 : x
  2. Step 2: Convert to fraction form
    111,982.08/154,535.28 = 61,681.08/x
  3. Step 3: Cross multiply
    111,982.08x = 154,535.28 × 61,681.08
  4. Step 4: Simplify right side
    111,982.08x = 9,531,902,968.50
  5. Step 5: Solve for x
    x = 9,531,902,968.50/111,982.08
  6. Step 6: Final answer
    x = 85,119.90

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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.