Home / 190,765.40-263,218.02-122,675.72

Finding the Fourth Proportional to 190,765.40, 263,218.02 and 122,675.72

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Solution

The fourth proportional to 190,765.40, 263,218.02 and 122,675.72 is: 169,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,765.40 : 263,218.02 = 122,675.72 : x
  2. Step 2: Convert to fraction form
    190,765.40/263,218.02 = 122,675.72/x
  3. Step 3: Cross multiply
    190,765.40x = 263,218.02 × 122,675.72
  4. Step 4: Simplify right side
    190,765.40x = 32,290,460,120.47
  5. Step 5: Solve for x
    x = 32,290,460,120.47/190,765.40
  6. Step 6: Final answer
    x = 169,267.91

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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.