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Finding the Fourth Proportional to 141,932, 212,898 and 79,607.36

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Solution

The fourth proportional to 141,932, 212,898 and 79,607.36 is: 119,411.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,932 : 212,898 = 79,607.36 : x
  2. Step 2: Convert to fraction form
    141,932/212,898 = 79,607.36/x
  3. Step 3: Cross multiply
    141,932x = 212,898 × 79,607.36
  4. Step 4: Simplify right side
    141,932x = 16,948,247,729.28
  5. Step 5: Solve for x
    x = 16,948,247,729.28/141,932
  6. Step 6: Final answer
    x = 119,411.04

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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.