Home / 186,969.65-258,036.80-111,518.15

Finding the Fourth Proportional to 186,969.65, 258,036.80 and 111,518.15

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Solution

The fourth proportional to 186,969.65, 258,036.80 and 111,518.15 is: 153,906.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,969.65 : 258,036.80 = 111,518.15 : x
  2. Step 2: Convert to fraction form
    186,969.65/258,036.80 = 111,518.15/x
  3. Step 3: Cross multiply
    186,969.65x = 258,036.80 × 111,518.15
  4. Step 4: Simplify right side
    186,969.65x = 28,775,784,720.15
  5. Step 5: Solve for x
    x = 28,775,784,720.15/186,969.65
  6. Step 6: Final answer
    x = 153,906.18

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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.