Home / 167,930.40-251,890.20-55,615.80

Finding the Fourth Proportional to 167,930.40, 251,890.20 and 55,615.80

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Solution

The fourth proportional to 167,930.40, 251,890.20 and 55,615.80 is: 83,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,930.40 : 251,890.20 = 55,615.80 : x
  2. Step 2: Convert to fraction form
    167,930.40/251,890.20 = 55,615.80/x
  3. Step 3: Cross multiply
    167,930.40x = 251,890.20 × 55,615.80
  4. Step 4: Simplify right side
    167,930.40x = 14,009,074,985.16
  5. Step 5: Solve for x
    x = 14,009,074,985.16/167,930.40
  6. Step 6: Final answer
    x = 83,421.91

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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.