Home / 162,082.56-223,497.60-105,388.80

Finding the Fourth Proportional to 162,082.56, 223,497.60 and 105,388.80

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Solution

The fourth proportional to 162,082.56, 223,497.60 and 105,388.80 is: 145,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,082.56 : 223,497.60 = 105,388.80 : x
  2. Step 2: Convert to fraction form
    162,082.56/223,497.60 = 105,388.80/x
  3. Step 3: Cross multiply
    162,082.56x = 223,497.60 × 105,388.80
  4. Step 4: Simplify right side
    162,082.56x = 23,554,143,866.88
  5. Step 5: Solve for x
    x = 23,554,143,866.88/162,082.56
  6. Step 6: Final answer
    x = 145,321.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.