Home / 112,763.90-169,128.21-49,570.04

Finding the Fourth Proportional to 112,763.90, 169,128.21 and 49,570.04

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Solution

The fourth proportional to 112,763.90, 169,128.21 and 49,570.04 is: 74,347.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,763.90 : 169,128.21 = 49,570.04 : x
  2. Step 2: Convert to fraction form
    112,763.90/169,128.21 = 49,570.04/x
  3. Step 3: Cross multiply
    112,763.90x = 169,128.21 × 49,570.04
  4. Step 4: Simplify right side
    112,763.90x = 8,383,692,134.83
  5. Step 5: Solve for x
    x = 8,383,692,134.83/112,763.90
  6. Step 6: Final answer
    x = 74,347.31

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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.