Home / 133,066.20-199,623.60-54,188.40

Finding the Fourth Proportional to 133,066.20, 199,623.60 and 54,188.40

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Solution

The fourth proportional to 133,066.20, 199,623.60 and 54,188.40 is: 81,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,066.20 : 199,623.60 = 54,188.40 : x
  2. Step 2: Convert to fraction form
    133,066.20/199,623.60 = 54,188.40/x
  3. Step 3: Cross multiply
    133,066.20x = 199,623.60 × 54,188.40
  4. Step 4: Simplify right side
    133,066.20x = 10,817,283,486.24
  5. Step 5: Solve for x
    x = 10,817,283,486.24/133,066.20
  6. Step 6: Final answer
    x = 81,292.50

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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.