Home / 115,699.05-173,536.83-78,498.18

Finding the Fourth Proportional to 115,699.05, 173,536.83 and 78,498.18

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Solution

The fourth proportional to 115,699.05, 173,536.83 and 78,498.18 is: 117,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,699.05 : 173,536.83 = 78,498.18 : x
  2. Step 2: Convert to fraction form
    115,699.05/173,536.83 = 78,498.18/x
  3. Step 3: Cross multiply
    115,699.05x = 173,536.83 × 78,498.18
  4. Step 4: Simplify right side
    115,699.05x = 13,622,325,317.97
  5. Step 5: Solve for x
    x = 13,622,325,317.97/115,699.05
  6. Step 6: Final answer
    x = 117,739.30

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1.5x scale

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.