Home / 141,940.96-212,994.06-78,813.88

Finding the Fourth Proportional to 141,940.96, 212,994.06 and 78,813.88

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Solution

The fourth proportional to 141,940.96, 212,994.06 and 78,813.88 is: 118,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,940.96 : 212,994.06 = 78,813.88 : x
  2. Step 2: Convert to fraction form
    141,940.96/212,994.06 = 78,813.88/x
  3. Step 3: Cross multiply
    141,940.96x = 212,994.06 × 78,813.88
  4. Step 4: Simplify right side
    141,940.96x = 16,786,888,285.55
  5. Step 5: Solve for x
    x = 16,786,888,285.55/141,940.96
  6. Step 6: Final answer
    x = 118,266.70

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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.