Home / 115,720.16-173,422.58-70,757.25

Finding the Fourth Proportional to 115,720.16, 173,422.58 and 70,757.25

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Solution

The fourth proportional to 115,720.16, 173,422.58 and 70,757.25 is: 106,039.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,720.16 : 173,422.58 = 70,757.25 : x
  2. Step 2: Convert to fraction form
    115,720.16/173,422.58 = 70,757.25/x
  3. Step 3: Cross multiply
    115,720.16x = 173,422.58 × 70,757.25
  4. Step 4: Simplify right side
    115,720.16x = 12,270,904,494.92
  5. Step 5: Solve for x
    x = 12,270,904,494.92/115,720.16
  6. Step 6: Final answer
    x = 106,039.48

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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.