Home / 261,569.06-392,081.43-121,212.26

Finding the Fourth Proportional to 261,569.06, 392,081.43 and 121,212.26

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Solution

The fourth proportional to 261,569.06, 392,081.43 and 121,212.26 is: 181,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,569.06 : 392,081.43 = 121,212.26 : x
  2. Step 2: Convert to fraction form
    261,569.06/392,081.43 = 121,212.26/x
  3. Step 3: Cross multiply
    261,569.06x = 392,081.43 × 121,212.26
  4. Step 4: Simplify right side
    261,569.06x = 47,525,076,234.33
  5. Step 5: Solve for x
    x = 47,525,076,234.33/261,569.06
  6. Step 6: Final answer
    x = 181,692.27

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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.