Home / 186,538.56-257,346.12-129,982.80

Finding the Fourth Proportional to 186,538.56, 257,346.12 and 129,982.80

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Solution

The fourth proportional to 186,538.56, 257,346.12 and 129,982.80 is: 179,322.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,538.56 : 257,346.12 = 129,982.80 : x
  2. Step 2: Convert to fraction form
    186,538.56/257,346.12 = 129,982.80/x
  3. Step 3: Cross multiply
    186,538.56x = 257,346.12 × 129,982.80
  4. Step 4: Simplify right side
    186,538.56x = 33,450,569,246.74
  5. Step 5: Solve for x
    x = 33,450,569,246.74/186,538.56
  6. Step 6: Final answer
    x = 179,322.54

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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.