Home / 115,899.84-173,568.96-80,261.28

Finding the Fourth Proportional to 115,899.84, 173,568.96 and 80,261.28

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Solution

The fourth proportional to 115,899.84, 173,568.96 and 80,261.28 is: 120,197.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,899.84 : 173,568.96 = 80,261.28 : x
  2. Step 2: Convert to fraction form
    115,899.84/173,568.96 = 80,261.28/x
  3. Step 3: Cross multiply
    115,899.84x = 173,568.96 × 80,261.28
  4. Step 4: Simplify right side
    115,899.84x = 13,930,866,897.87
  5. Step 5: Solve for x
    x = 13,930,866,897.87/115,899.84
  6. Step 6: Final answer
    x = 120,197.46

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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.