Home / 111,971.04-167,137.35-98,685.48

Finding the Fourth Proportional to 111,971.04, 167,137.35 and 98,685.48

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Solution

The fourth proportional to 111,971.04, 167,137.35 and 98,685.48 is: 147,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,971.04 : 167,137.35 = 98,685.48 : x
  2. Step 2: Convert to fraction form
    111,971.04/167,137.35 = 98,685.48/x
  3. Step 3: Cross multiply
    111,971.04x = 167,137.35 × 98,685.48
  4. Step 4: Simplify right side
    111,971.04x = 16,494,029,610.68
  5. Step 5: Solve for x
    x = 16,494,029,610.68/111,971.04
  6. Step 6: Final answer
    x = 147,306.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.