Home / 112,742.84-155,546.49-64,309.97

Finding the Fourth Proportional to 112,742.84, 155,546.49 and 64,309.97

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Solution

The fourth proportional to 112,742.84, 155,546.49 and 64,309.97 is: 88,725.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,742.84 : 155,546.49 = 64,309.97 : x
  2. Step 2: Convert to fraction form
    112,742.84/155,546.49 = 64,309.97/x
  3. Step 3: Cross multiply
    112,742.84x = 155,546.49 × 64,309.97
  4. Step 4: Simplify right side
    112,742.84x = 10,003,190,105.51
  5. Step 5: Solve for x
    x = 10,003,190,105.51/112,742.84
  6. Step 6: Final answer
    x = 88,725.72

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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.