Home / 111,717.34-167,655.96-40,639.84

Finding the Fourth Proportional to 111,717.34, 167,655.96 and 40,639.84

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Solution

The fourth proportional to 111,717.34, 167,655.96 and 40,639.84 is: 60,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,717.34 : 167,655.96 = 40,639.84 : x
  2. Step 2: Convert to fraction form
    111,717.34/167,655.96 = 40,639.84/x
  3. Step 3: Cross multiply
    111,717.34x = 167,655.96 × 40,639.84
  4. Step 4: Simplify right side
    111,717.34x = 6,813,511,389.45
  5. Step 5: Solve for x
    x = 6,813,511,389.45/111,717.34
  6. Step 6: Final answer
    x = 60,988.84

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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.