Home / 111,986.17-154,540.93-61,685.17

Finding the Fourth Proportional to 111,986.17, 154,540.93 and 61,685.17

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Solution

The fourth proportional to 111,986.17, 154,540.93 and 61,685.17 is: 85,125.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,986.17 : 154,540.93 = 61,685.17 : x
  2. Step 2: Convert to fraction form
    111,986.17/154,540.93 = 61,685.17/x
  3. Step 3: Cross multiply
    111,986.17x = 154,540.93 × 61,685.17
  4. Step 4: Simplify right side
    111,986.17x = 9,532,883,539.01
  5. Step 5: Solve for x
    x = 9,532,883,539.01/111,986.17
  6. Step 6: Final answer
    x = 85,125.54

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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.