Home / 144,799.20-199,830.88-81,157.44

Finding the Fourth Proportional to 144,799.20, 199,830.88 and 81,157.44

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Solution

The fourth proportional to 144,799.20, 199,830.88 and 81,157.44 is: 112,001.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,799.20 : 199,830.88 = 81,157.44 : x
  2. Step 2: Convert to fraction form
    144,799.20/199,830.88 = 81,157.44/x
  3. Step 3: Cross multiply
    144,799.20x = 199,830.88 × 81,157.44
  4. Step 4: Simplify right side
    144,799.20x = 16,217,762,653.75
  5. Step 5: Solve for x
    x = 16,217,762,653.75/144,799.20
  6. Step 6: Final answer
    x = 112,001.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.