Home / 101,746.05-140,247.78-80,200.86

Finding the Fourth Proportional to 101,746.05, 140,247.78 and 80,200.86

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Solution

The fourth proportional to 101,746.05, 140,247.78 and 80,200.86 is: 110,549.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,746.05 : 140,247.78 = 80,200.86 : x
  2. Step 2: Convert to fraction form
    101,746.05/140,247.78 = 80,200.86/x
  3. Step 3: Cross multiply
    101,746.05x = 140,247.78 × 80,200.86
  4. Step 4: Simplify right side
    101,746.05x = 11,247,992,569.09
  5. Step 5: Solve for x
    x = 11,247,992,569.09/101,746.05
  6. Step 6: Final answer
    x = 110,549.67

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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.