Home / 167,561.18-251,423.76-78,823.64

Finding the Fourth Proportional to 167,561.18, 251,423.76 and 78,823.64

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Solution

The fourth proportional to 167,561.18, 251,423.76 and 78,823.64 is: 118,274.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,561.18 : 251,423.76 = 78,823.64 : x
  2. Step 2: Convert to fraction form
    167,561.18/251,423.76 = 78,823.64/x
  3. Step 3: Cross multiply
    167,561.18x = 251,423.76 × 78,823.64
  4. Step 4: Simplify right side
    167,561.18x = 19,818,135,945.69
  5. Step 5: Solve for x
    x = 19,818,135,945.69/167,561.18
  6. Step 6: Final answer
    x = 118,274.03

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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.