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Finding the Fourth Proportional to 162,512.40, 243,768.60 and 109,368.30

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Solution

The fourth proportional to 162,512.40, 243,768.60 and 109,368.30 is: 164,052.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,512.40 : 243,768.60 = 109,368.30 : x
  2. Step 2: Convert to fraction form
    162,512.40/243,768.60 = 109,368.30/x
  3. Step 3: Cross multiply
    162,512.40x = 243,768.60 × 109,368.30
  4. Step 4: Simplify right side
    162,512.40x = 26,660,557,375.38
  5. Step 5: Solve for x
    x = 26,660,557,375.38/162,512.40
  6. Step 6: Final answer
    x = 164,052.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.