Home / 445,611.40-668,514.30-130,042.60

Finding the Fourth Proportional to 445,611.40, 668,514.30 and 130,042.60

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Solution

The fourth proportional to 445,611.40, 668,514.30 and 130,042.60 is: 195,092.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,611.40 : 668,514.30 = 130,042.60 : x
  2. Step 2: Convert to fraction form
    445,611.40/668,514.30 = 130,042.60/x
  3. Step 3: Cross multiply
    445,611.40x = 668,514.30 × 130,042.60
  4. Step 4: Simplify right side
    445,611.40x = 86,935,337,709.18
  5. Step 5: Solve for x
    x = 86,935,337,709.18/445,611.40
  6. Step 6: Final answer
    x = 195,092.27

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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.