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Finding the Fourth Proportional to 159,369, 219,929.22 and 88,713

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Solution

The fourth proportional to 159,369, 219,929.22 and 88,713 is: 122,423.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,369 : 219,929.22 = 88,713 : x
  2. Step 2: Convert to fraction form
    159,369/219,929.22 = 88,713/x
  3. Step 3: Cross multiply
    159,369x = 219,929.22 × 88,713
  4. Step 4: Simplify right side
    159,369x = 19,510,580,893.86
  5. Step 5: Solve for x
    x = 19,510,580,893.86/159,369
  6. Step 6: Final answer
    x = 122,423.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.