Home / 147,191.40-203,127.87-82,665.78

Finding the Fourth Proportional to 147,191.40, 203,127.87 and 82,665.78

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Solution

The fourth proportional to 147,191.40, 203,127.87 and 82,665.78 is: 114,080.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,191.40 : 203,127.87 = 82,665.78 : x
  2. Step 2: Convert to fraction form
    147,191.40/203,127.87 = 82,665.78/x
  3. Step 3: Cross multiply
    147,191.40x = 203,127.87 × 82,665.78
  4. Step 4: Simplify right side
    147,191.40x = 16,791,723,813.29
  5. Step 5: Solve for x
    x = 16,791,723,813.29/147,191.40
  6. Step 6: Final answer
    x = 114,080.88

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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.