Home / 186,687.03-257,647.55-115,065.21

Finding the Fourth Proportional to 186,687.03, 257,647.55 and 115,065.21

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Solution

The fourth proportional to 186,687.03, 257,647.55 and 115,065.21 is: 158,801.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,687.03 : 257,647.55 = 115,065.21 : x
  2. Step 2: Convert to fraction form
    186,687.03/257,647.55 = 115,065.21/x
  3. Step 3: Cross multiply
    186,687.03x = 257,647.55 × 115,065.21
  4. Step 4: Simplify right side
    186,687.03x = 29,646,269,193.47
  5. Step 5: Solve for x
    x = 29,646,269,193.47/186,687.03
  6. Step 6: Final answer
    x = 158,801.97

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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.