Home / 111,986.92-154,541.96-61,685.92

Finding the Fourth Proportional to 111,986.92, 154,541.96 and 61,685.92

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Solution

The fourth proportional to 111,986.92, 154,541.96 and 61,685.92 is: 85,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,986.92 : 154,541.96 = 61,685.92 : x
  2. Step 2: Convert to fraction form
    111,986.92/154,541.96 = 61,685.92/x
  3. Step 3: Cross multiply
    111,986.92x = 154,541.96 × 61,685.92
  4. Step 4: Simplify right side
    111,986.92x = 9,533,062,981.20
  5. Step 5: Solve for x
    x = 9,533,062,981.20/111,986.92
  6. Step 6: Final answer
    x = 85,126.58

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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.