Home / 154,827.60-213,664.41-86,859.60

Finding the Fourth Proportional to 154,827.60, 213,664.41 and 86,859.60

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Solution

The fourth proportional to 154,827.60, 213,664.41 and 86,859.60 is: 119,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,827.60 : 213,664.41 = 86,859.60 : x
  2. Step 2: Convert to fraction form
    154,827.60/213,664.41 = 86,859.60/x
  3. Step 3: Cross multiply
    154,827.60x = 213,664.41 × 86,859.60
  4. Step 4: Simplify right side
    154,827.60x = 18,558,805,186.84
  5. Step 5: Solve for x
    x = 18,558,805,186.84/154,827.60
  6. Step 6: Final answer
    x = 119,867.55

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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.