Home / 186,918.58-280,381.80-66,983.34

Finding the Fourth Proportional to 186,918.58, 280,381.80 and 66,983.34

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Solution

The fourth proportional to 186,918.58, 280,381.80 and 66,983.34 is: 100,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,918.58 : 280,381.80 = 66,983.34 : x
  2. Step 2: Convert to fraction form
    186,918.58/280,381.80 = 66,983.34/x
  3. Step 3: Cross multiply
    186,918.58x = 280,381.80 × 66,983.34
  4. Step 4: Simplify right side
    186,918.58x = 18,780,909,439.21
  5. Step 5: Solve for x
    x = 18,780,909,439.21/186,918.58
  6. Step 6: Final answer
    x = 100,476.42

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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.