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Finding the Fourth Proportional to 162,652.36, 224,059.20 and 138,375.57

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Solution

The fourth proportional to 162,652.36, 224,059.20 and 138,375.57 is: 190,617.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,652.36 : 224,059.20 = 138,375.57 : x
  2. Step 2: Convert to fraction form
    162,652.36/224,059.20 = 138,375.57/x
  3. Step 3: Cross multiply
    162,652.36x = 224,059.20 × 138,375.57
  4. Step 4: Simplify right side
    162,652.36x = 31,004,319,513.74
  5. Step 5: Solve for x
    x = 31,004,319,513.74/162,652.36
  6. Step 6: Final answer
    x = 190,617.09

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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.