Home / 141,664.84-212,652.94-79,387.72

Finding the Fourth Proportional to 141,664.84, 212,652.94 and 79,387.72

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Solution

The fourth proportional to 141,664.84, 212,652.94 and 79,387.72 is: 119,168.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,664.84 : 212,652.94 = 79,387.72 : x
  2. Step 2: Convert to fraction form
    141,664.84/212,652.94 = 79,387.72/x
  3. Step 3: Cross multiply
    141,664.84x = 212,652.94 × 79,387.72
  4. Step 4: Simplify right side
    141,664.84x = 16,882,032,057.90
  5. Step 5: Solve for x
    x = 16,882,032,057.90/141,664.84
  6. Step 6: Final answer
    x = 119,168.82

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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.