Home / 134,288.76-185,256.37-80,480.36

Finding the Fourth Proportional to 134,288.76, 185,256.37 and 80,480.36

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Solution

The fourth proportional to 134,288.76, 185,256.37 and 80,480.36 is: 111,025.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,288.76 : 185,256.37 = 80,480.36 : x
  2. Step 2: Convert to fraction form
    134,288.76/185,256.37 = 80,480.36/x
  3. Step 3: Cross multiply
    134,288.76x = 185,256.37 × 80,480.36
  4. Step 4: Simplify right side
    134,288.76x = 14,909,498,939.90
  5. Step 5: Solve for x
    x = 14,909,498,939.90/134,288.76
  6. Step 6: Final answer
    x = 111,025.66

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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.