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Finding the Fourth Proportional to 144,559.78, 216,714.96 and 69,576.77

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Solution

The fourth proportional to 144,559.78, 216,714.96 and 69,576.77 is: 104,305.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,559.78 : 216,714.96 = 69,576.77 : x
  2. Step 2: Convert to fraction form
    144,559.78/216,714.96 = 69,576.77/x
  3. Step 3: Cross multiply
    144,559.78x = 216,714.96 × 69,576.77
  4. Step 4: Simplify right side
    144,559.78x = 15,078,327,469.27
  5. Step 5: Solve for x
    x = 15,078,327,469.27/144,559.78
  6. Step 6: Final answer
    x = 104,305.14

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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.