Home / 251,354.21-346,875.48-136,640.59

Finding the Fourth Proportional to 251,354.21, 346,875.48 and 136,640.59

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Solution

The fourth proportional to 251,354.21, 346,875.48 and 136,640.59 is: 188,567.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,354.21 : 346,875.48 = 136,640.59 : x
  2. Step 2: Convert to fraction form
    251,354.21/346,875.48 = 136,640.59/x
  3. Step 3: Cross multiply
    251,354.21x = 346,875.48 × 136,640.59
  4. Step 4: Simplify right side
    251,354.21x = 47,397,269,376.54
  5. Step 5: Solve for x
    x = 47,397,269,376.54/251,354.21
  6. Step 6: Final answer
    x = 188,567.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.