Home / 141,777.14-212,465.10-78,625.04

Finding the Fourth Proportional to 141,777.14, 212,465.10 and 78,625.04

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Solution

The fourth proportional to 141,777.14, 212,465.10 and 78,625.04 is: 117,826.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,777.14 : 212,465.10 = 78,625.04 : x
  2. Step 2: Convert to fraction form
    141,777.14/212,465.10 = 78,625.04/x
  3. Step 3: Cross multiply
    141,777.14x = 212,465.10 × 78,625.04
  4. Step 4: Simplify right side
    141,777.14x = 16,705,076,986.10
  5. Step 5: Solve for x
    x = 16,705,076,986.10/141,777.14
  6. Step 6: Final answer
    x = 117,826.31

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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.