Home / 111,981.40-167,972.10-41,851.60

Finding the Fourth Proportional to 111,981.40, 167,972.10 and 41,851.60

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Solution

The fourth proportional to 111,981.40, 167,972.10 and 41,851.60 is: 62,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,981.40 : 167,972.10 = 41,851.60 : x
  2. Step 2: Convert to fraction form
    111,981.40/167,972.10 = 41,851.60/x
  3. Step 3: Cross multiply
    111,981.40x = 167,972.10 × 41,851.60
  4. Step 4: Simplify right side
    111,981.40x = 7,029,901,140.36
  5. Step 5: Solve for x
    x = 7,029,901,140.36/111,981.40
  6. Step 6: Final answer
    x = 62,777.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.