Home / 112,536.78-168,617.73-79,186.77

Finding the Fourth Proportional to 112,536.78, 168,617.73 and 79,186.77

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Solution

The fourth proportional to 112,536.78, 168,617.73 and 79,186.77 is: 118,648.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,536.78 : 168,617.73 = 79,186.77 : x
  2. Step 2: Convert to fraction form
    112,536.78/168,617.73 = 79,186.77/x
  3. Step 3: Cross multiply
    112,536.78x = 168,617.73 × 79,186.77
  4. Step 4: Simplify right side
    112,536.78x = 13,352,293,403.43
  5. Step 5: Solve for x
    x = 13,352,293,403.43/112,536.78
  6. Step 6: Final answer
    x = 118,648.26

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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.