Home / 118,832.80-178,191.60-66,186.40

Finding the Fourth Proportional to 118,832.80, 178,191.60 and 66,186.40

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Solution

The fourth proportional to 118,832.80, 178,191.60 and 66,186.40 is: 99,247.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,832.80 : 178,191.60 = 66,186.40 : x
  2. Step 2: Convert to fraction form
    118,832.80/178,191.60 = 66,186.40/x
  3. Step 3: Cross multiply
    118,832.80x = 178,191.60 × 66,186.40
  4. Step 4: Simplify right side
    118,832.80x = 11,793,860,514.24
  5. Step 5: Solve for x
    x = 11,793,860,514.24/118,832.80
  6. Step 6: Final answer
    x = 99,247.52

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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.