Home / 186,633.21-257,585.76-129,355.68

Finding the Fourth Proportional to 186,633.21, 257,585.76 and 129,355.68

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Solution

The fourth proportional to 186,633.21, 257,585.76 and 129,355.68 is: 178,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,633.21 : 257,585.76 = 129,355.68 : x
  2. Step 2: Convert to fraction form
    186,633.21/257,585.76 = 129,355.68/x
  3. Step 3: Cross multiply
    186,633.21x = 257,585.76 × 129,355.68
  4. Step 4: Simplify right side
    186,633.21x = 33,320,181,143.12
  5. Step 5: Solve for x
    x = 33,320,181,143.12/186,633.21
  6. Step 6: Final answer
    x = 178,532.97

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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.