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Finding the Fourth Proportional to 161,644.99, 223,077 and 90,025

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Solution

The fourth proportional to 161,644.99, 223,077 and 90,025 is: 124,238.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,644.99 : 223,077 = 90,025 : x
  2. Step 2: Convert to fraction form
    161,644.99/223,077 = 90,025/x
  3. Step 3: Cross multiply
    161,644.99x = 223,077 × 90,025
  4. Step 4: Simplify right side
    161,644.99x = 20,082,506,925
  5. Step 5: Solve for x
    x = 20,082,506,925/161,644.99
  6. Step 6: Final answer
    x = 124,238.35

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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.