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Finding the Fourth Proportional to 162,035.76, 243,051.60 and 55,418.64

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Solution

The fourth proportional to 162,035.76, 243,051.60 and 55,418.64 is: 83,127.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,035.76 : 243,051.60 = 55,418.64 : x
  2. Step 2: Convert to fraction form
    162,035.76/243,051.60 = 55,418.64/x
  3. Step 3: Cross multiply
    162,035.76x = 243,051.60 × 55,418.64
  4. Step 4: Simplify right side
    162,035.76x = 13,469,589,121.82
  5. Step 5: Solve for x
    x = 13,469,589,121.82/162,035.76
  6. Step 6: Final answer
    x = 83,127.26

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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.