Home / 140,388.06-193,735.06-76,725.84

Finding the Fourth Proportional to 140,388.06, 193,735.06 and 76,725.84

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Solution

The fourth proportional to 140,388.06, 193,735.06 and 76,725.84 is: 105,881.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,388.06 : 193,735.06 = 76,725.84 : x
  2. Step 2: Convert to fraction form
    140,388.06/193,735.06 = 76,725.84/x
  3. Step 3: Cross multiply
    140,388.06x = 193,735.06 × 76,725.84
  4. Step 4: Simplify right side
    140,388.06x = 14,864,485,215.95
  5. Step 5: Solve for x
    x = 14,864,485,215.95/140,388.06
  6. Step 6: Final answer
    x = 105,881.41

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1.5x scale

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.