Home / 129,867.60-194,801.40-109,200.45

Finding the Fourth Proportional to 129,867.60, 194,801.40 and 109,200.45

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Solution

The fourth proportional to 129,867.60, 194,801.40 and 109,200.45 is: 163,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,867.60 : 194,801.40 = 109,200.45 : x
  2. Step 2: Convert to fraction form
    129,867.60/194,801.40 = 109,200.45/x
  3. Step 3: Cross multiply
    129,867.60x = 194,801.40 × 109,200.45
  4. Step 4: Simplify right side
    129,867.60x = 21,272,400,540.63
  5. Step 5: Solve for x
    x = 21,272,400,540.63/129,867.60
  6. Step 6: Final answer
    x = 163,800.68

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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.