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Finding the Fourth Proportional to 162,558.39, 224,330.91 and 90,939.61

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Solution

The fourth proportional to 162,558.39, 224,330.91 and 90,939.61 is: 125,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,558.39 : 224,330.91 = 90,939.61 : x
  2. Step 2: Convert to fraction form
    162,558.39/224,330.91 = 90,939.61/x
  3. Step 3: Cross multiply
    162,558.39x = 224,330.91 × 90,939.61
  4. Step 4: Simplify right side
    162,558.39x = 20,400,565,466.35
  5. Step 5: Solve for x
    x = 20,400,565,466.35/162,558.39
  6. Step 6: Final answer
    x = 125,496.85

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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.