Home / 124,454.22-171,761.58-78,580.50

Finding the Fourth Proportional to 124,454.22, 171,761.58 and 78,580.50

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Solution

The fourth proportional to 124,454.22, 171,761.58 and 78,580.50 is: 108,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,454.22 : 171,761.58 = 78,580.50 : x
  2. Step 2: Convert to fraction form
    124,454.22/171,761.58 = 78,580.50/x
  3. Step 3: Cross multiply
    124,454.22x = 171,761.58 × 78,580.50
  4. Step 4: Simplify right side
    124,454.22x = 13,497,110,837.19
  5. Step 5: Solve for x
    x = 13,497,110,837.19/124,454.22
  6. Step 6: Final answer
    x = 108,450.41

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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.