Home / 130,566.20-195,849.30-77,948.60

Finding the Fourth Proportional to 130,566.20, 195,849.30 and 77,948.60

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Solution

The fourth proportional to 130,566.20, 195,849.30 and 77,948.60 is: 116,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,566.20 : 195,849.30 = 77,948.60 : x
  2. Step 2: Convert to fraction form
    130,566.20/195,849.30 = 77,948.60/x
  3. Step 3: Cross multiply
    130,566.20x = 195,849.30 × 77,948.60
  4. Step 4: Simplify right side
    130,566.20x = 15,266,178,745.98
  5. Step 5: Solve for x
    x = 15,266,178,745.98/130,566.20
  6. Step 6: Final answer
    x = 116,922.90

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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.