Home / 136,949.84-189,043.43-122,584.29

Finding the Fourth Proportional to 136,949.84, 189,043.43 and 122,584.29

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Solution

The fourth proportional to 136,949.84, 189,043.43 and 122,584.29 is: 169,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,949.84 : 189,043.43 = 122,584.29 : x
  2. Step 2: Convert to fraction form
    136,949.84/189,043.43 = 122,584.29/x
  3. Step 3: Cross multiply
    136,949.84x = 189,043.43 × 122,584.29
  4. Step 4: Simplify right side
    136,949.84x = 23,173,754,032.79
  5. Step 5: Solve for x
    x = 23,173,754,032.79/136,949.84
  6. Step 6: Final answer
    x = 169,213.45

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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.