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Finding the Fourth Proportional to 162,511.78, 243,798.18 and 73,771.51

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Solution

The fourth proportional to 162,511.78, 243,798.18 and 73,771.51 is: 110,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,511.78 : 243,798.18 = 73,771.51 : x
  2. Step 2: Convert to fraction form
    162,511.78/243,798.18 = 73,771.51/x
  3. Step 3: Cross multiply
    162,511.78x = 243,798.18 × 73,771.51
  4. Step 4: Simplify right side
    162,511.78x = 17,985,359,873.85
  5. Step 5: Solve for x
    x = 17,985,359,873.85/162,511.78
  6. Step 6: Final answer
    x = 110,671.11

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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.