Home / 140,571.76-193,999.56-80,143.84

Finding the Fourth Proportional to 140,571.76, 193,999.56 and 80,143.84

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Solution

The fourth proportional to 140,571.76, 193,999.56 and 80,143.84 is: 110,604.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,571.76 : 193,999.56 = 80,143.84 : x
  2. Step 2: Convert to fraction form
    140,571.76/193,999.56 = 80,143.84/x
  3. Step 3: Cross multiply
    140,571.76x = 193,999.56 × 80,143.84
  4. Step 4: Simplify right side
    140,571.76x = 15,547,869,696.71
  5. Step 5: Solve for x
    x = 15,547,869,696.71/140,571.76
  6. Step 6: Final answer
    x = 110,604.50

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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.