Home / 136,827.84-188,822.16-80,238.72

Finding the Fourth Proportional to 136,827.84, 188,822.16 and 80,238.72

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Solution

The fourth proportional to 136,827.84, 188,822.16 and 80,238.72 is: 110,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,827.84 : 188,822.16 = 80,238.72 : x
  2. Step 2: Convert to fraction form
    136,827.84/188,822.16 = 80,238.72/x
  3. Step 3: Cross multiply
    136,827.84x = 188,822.16 × 80,238.72
  4. Step 4: Simplify right side
    136,827.84x = 15,150,848,426.04
  5. Step 5: Solve for x
    x = 15,150,848,426.04/136,827.84
  6. Step 6: Final answer
    x = 110,729.28

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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.