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Finding the Fourth Proportional to 162,003.80, 243,005.70 and 114,764.60

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Solution

The fourth proportional to 162,003.80, 243,005.70 and 114,764.60 is: 172,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,003.80 : 243,005.70 = 114,764.60 : x
  2. Step 2: Convert to fraction form
    162,003.80/243,005.70 = 114,764.60/x
  3. Step 3: Cross multiply
    162,003.80x = 243,005.70 × 114,764.60
  4. Step 4: Simplify right side
    162,003.80x = 27,888,451,958.22
  5. Step 5: Solve for x
    x = 27,888,451,958.22/162,003.80
  6. Step 6: Final answer
    x = 172,146.90

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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.