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Finding the Fourth Proportional to 162,144.48, 243,486.44 and 100,208.64

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Solution

The fourth proportional to 162,144.48, 243,486.44 and 100,208.64 is: 150,479.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,144.48 : 243,486.44 = 100,208.64 : x
  2. Step 2: Convert to fraction form
    162,144.48/243,486.44 = 100,208.64/x
  3. Step 3: Cross multiply
    162,144.48x = 243,486.44 × 100,208.64
  4. Step 4: Simplify right side
    162,144.48x = 24,399,445,010.84
  5. Step 5: Solve for x
    x = 24,399,445,010.84/162,144.48
  6. Step 6: Final answer
    x = 150,479.65

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1.5x scale

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.