Home / 141,370.80-212,056.20-78,385.20

Finding the Fourth Proportional to 141,370.80, 212,056.20 and 78,385.20

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Solution

The fourth proportional to 141,370.80, 212,056.20 and 78,385.20 is: 117,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,370.80 : 212,056.20 = 78,385.20 : x
  2. Step 2: Convert to fraction form
    141,370.80/212,056.20 = 78,385.20/x
  3. Step 3: Cross multiply
    141,370.80x = 212,056.20 × 78,385.20
  4. Step 4: Simplify right side
    141,370.80x = 16,622,067,648.24
  5. Step 5: Solve for x
    x = 16,622,067,648.24/141,370.80
  6. Step 6: Final answer
    x = 117,577.80

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1.5x scale

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.