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Finding the Fourth Proportional to 152,676.89, 228,922.99 and 68,421.50

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Solution

The fourth proportional to 152,676.89, 228,922.99 and 68,421.50 is: 102,590.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,676.89 : 228,922.99 = 68,421.50 : x
  2. Step 2: Convert to fraction form
    152,676.89/228,922.99 = 68,421.50/x
  3. Step 3: Cross multiply
    152,676.89x = 228,922.99 × 68,421.50
  4. Step 4: Simplify right side
    152,676.89x = 15,663,254,360.29
  5. Step 5: Solve for x
    x = 15,663,254,360.29/152,676.89
  6. Step 6: Final answer
    x = 102,590.87

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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.