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Finding the Fourth Proportional to 162,999.75, 224,936.30 and 90,390.92

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Solution

The fourth proportional to 162,999.75, 224,936.30 and 90,390.92 is: 124,737.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,999.75 : 224,936.30 = 90,390.92 : x
  2. Step 2: Convert to fraction form
    162,999.75/224,936.30 = 90,390.92/x
  3. Step 3: Cross multiply
    162,999.75x = 224,936.30 × 90,390.92
  4. Step 4: Simplify right side
    162,999.75x = 20,332,199,098.40
  5. Step 5: Solve for x
    x = 20,332,199,098.40/162,999.75
  6. Step 6: Final answer
    x = 124,737.61

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1.5x scale

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.