Home / 145,330.80-217,996.20-127,251.60

Finding the Fourth Proportional to 145,330.80, 217,996.20 and 127,251.60

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Solution

The fourth proportional to 145,330.80, 217,996.20 and 127,251.60 is: 190,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,330.80 : 217,996.20 = 127,251.60 : x
  2. Step 2: Convert to fraction form
    145,330.80/217,996.20 = 127,251.60/x
  3. Step 3: Cross multiply
    145,330.80x = 217,996.20 × 127,251.60
  4. Step 4: Simplify right side
    145,330.80x = 27,740,365,243.92
  5. Step 5: Solve for x
    x = 27,740,365,243.92/145,330.80
  6. Step 6: Final answer
    x = 190,877.40

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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.