Home / 140,220.56-193,501.68-76,558.80

Finding the Fourth Proportional to 140,220.56, 193,501.68 and 76,558.80

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Solution

The fourth proportional to 140,220.56, 193,501.68 and 76,558.80 is: 105,649.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,220.56 : 193,501.68 = 76,558.80 : x
  2. Step 2: Convert to fraction form
    140,220.56/193,501.68 = 76,558.80/x
  3. Step 3: Cross multiply
    140,220.56x = 193,501.68 × 76,558.80
  4. Step 4: Simplify right side
    140,220.56x = 14,814,256,418.78
  5. Step 5: Solve for x
    x = 14,814,256,418.78/140,220.56
  6. Step 6: Final answer
    x = 105,649.67

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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.