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Finding the Fourth Proportional to 162,010.30, 243,015.45 and 142,764.70

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Solution

The fourth proportional to 162,010.30, 243,015.45 and 142,764.70 is: 214,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,010.30 : 243,015.45 = 142,764.70 : x
  2. Step 2: Convert to fraction form
    162,010.30/243,015.45 = 142,764.70/x
  3. Step 3: Cross multiply
    162,010.30x = 243,015.45 × 142,764.70
  4. Step 4: Simplify right side
    162,010.30x = 34,694,027,814.62
  5. Step 5: Solve for x
    x = 34,694,027,814.62/162,010.30
  6. Step 6: Final answer
    x = 214,147.05

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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.