Home / 141,780.15-212,596.38-66,880.22

Finding the Fourth Proportional to 141,780.15, 212,596.38 and 66,880.22

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Solution

The fourth proportional to 141,780.15, 212,596.38 and 66,880.22 is: 100,285.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,780.15 : 212,596.38 = 66,880.22 : x
  2. Step 2: Convert to fraction form
    141,780.15/212,596.38 = 66,880.22/x
  3. Step 3: Cross multiply
    141,780.15x = 212,596.38 × 66,880.22
  4. Step 4: Simplify right side
    141,780.15x = 14,218,491,602.62
  5. Step 5: Solve for x
    x = 14,218,491,602.62/141,780.15
  6. Step 6: Final answer
    x = 100,285.49

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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.