Home / 126,480.20-189,590.70-73,862.60

Finding the Fourth Proportional to 126,480.20, 189,590.70 and 73,862.60

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Solution

The fourth proportional to 126,480.20, 189,590.70 and 73,862.60 is: 110,718.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,480.20 : 189,590.70 = 73,862.60 : x
  2. Step 2: Convert to fraction form
    126,480.20/189,590.70 = 73,862.60/x
  3. Step 3: Cross multiply
    126,480.20x = 189,590.70 × 73,862.60
  4. Step 4: Simplify right side
    126,480.20x = 14,003,662,037.82
  5. Step 5: Solve for x
    x = 14,003,662,037.82/126,480.20
  6. Step 6: Final answer
    x = 110,718.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.