Home / 186,987.20-258,062.64-115,365.36

Finding the Fourth Proportional to 186,987.20, 258,062.64 and 115,365.36

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Solution

The fourth proportional to 186,987.20, 258,062.64 and 115,365.36 is: 159,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,987.20 : 258,062.64 = 115,365.36 : x
  2. Step 2: Convert to fraction form
    186,987.20/258,062.64 = 115,365.36/x
  3. Step 3: Cross multiply
    186,987.20x = 258,062.64 × 115,365.36
  4. Step 4: Simplify right side
    186,987.20x = 29,771,489,366.15
  5. Step 5: Solve for x
    x = 29,771,489,366.15/186,987.20
  6. Step 6: Final answer
    x = 159,216.72

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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.