Home / 190,865.56-263,248.50-129,658.96

Finding the Fourth Proportional to 190,865.56, 263,248.50 and 129,658.96

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Solution

The fourth proportional to 190,865.56, 263,248.50 and 129,658.96 is: 178,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,865.56 : 263,248.50 = 129,658.96 : x
  2. Step 2: Convert to fraction form
    190,865.56/263,248.50 = 129,658.96/x
  3. Step 3: Cross multiply
    190,865.56x = 263,248.50 × 129,658.96
  4. Step 4: Simplify right side
    190,865.56x = 34,132,526,731.56
  5. Step 5: Solve for x
    x = 34,132,526,731.56/190,865.56
  6. Step 6: Final answer
    x = 178,830.20

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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.