Home / 117,939.40-176,930.70-47,825.80

Finding the Fourth Proportional to 117,939.40, 176,930.70 and 47,825.80

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Solution

The fourth proportional to 117,939.40, 176,930.70 and 47,825.80 is: 71,747.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,939.40 : 176,930.70 = 47,825.80 : x
  2. Step 2: Convert to fraction form
    117,939.40/176,930.70 = 47,825.80/x
  3. Step 3: Cross multiply
    117,939.40x = 176,930.70 × 47,825.80
  4. Step 4: Simplify right side
    117,939.40x = 8,461,852,272.06
  5. Step 5: Solve for x
    x = 8,461,852,272.06/117,939.40
  6. Step 6: Final answer
    x = 71,747.46

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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.