Home / 136,821.60-205,254-57,936.32

Finding the Fourth Proportional to 136,821.60, 205,254 and 57,936.32

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Solution

The fourth proportional to 136,821.60, 205,254 and 57,936.32 is: 86,913.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,821.60 : 205,254 = 57,936.32 : x
  2. Step 2: Convert to fraction form
    136,821.60/205,254 = 57,936.32/x
  3. Step 3: Cross multiply
    136,821.60x = 205,254 × 57,936.32
  4. Step 4: Simplify right side
    136,821.60x = 11,891,661,425.28
  5. Step 5: Solve for x
    x = 11,891,661,425.28/136,821.60
  6. Step 6: Final answer
    x = 86,913.63

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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.