Home / 115,205.76-172,704.96-59,633.28

Finding the Fourth Proportional to 115,205.76, 172,704.96 and 59,633.28

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Solution

The fourth proportional to 115,205.76, 172,704.96 and 59,633.28 is: 89,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,205.76 : 172,704.96 = 59,633.28 : x
  2. Step 2: Convert to fraction form
    115,205.76/172,704.96 = 59,633.28/x
  3. Step 3: Cross multiply
    115,205.76x = 172,704.96 × 59,633.28
  4. Step 4: Simplify right side
    115,205.76x = 10,298,963,237.07
  5. Step 5: Solve for x
    x = 10,298,963,237.07/115,205.76
  6. Step 6: Final answer
    x = 89,396.25

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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.