Home / 141,207.20-211,810.80-85,110.65

Finding the Fourth Proportional to 141,207.20, 211,810.80 and 85,110.65

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Solution

The fourth proportional to 141,207.20, 211,810.80 and 85,110.65 is: 127,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,207.20 : 211,810.80 = 85,110.65 : x
  2. Step 2: Convert to fraction form
    141,207.20/211,810.80 = 85,110.65/x
  3. Step 3: Cross multiply
    141,207.20x = 211,810.80 × 85,110.65
  4. Step 4: Simplify right side
    141,207.20x = 18,027,354,865.02
  5. Step 5: Solve for x
    x = 18,027,354,865.02/141,207.20
  6. Step 6: Final answer
    x = 127,665.98

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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.