Home / 186,615.15-279,922.73-111,965.55

Finding the Fourth Proportional to 186,615.15, 279,922.73 and 111,965.55

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Solution

The fourth proportional to 186,615.15, 279,922.73 and 111,965.55 is: 167,948.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,615.15 : 279,922.73 = 111,965.55 : x
  2. Step 2: Convert to fraction form
    186,615.15/279,922.73 = 111,965.55/x
  3. Step 3: Cross multiply
    186,615.15x = 279,922.73 × 111,965.55
  4. Step 4: Simplify right side
    186,615.15x = 31,341,701,862.12
  5. Step 5: Solve for x
    x = 31,341,701,862.12/186,615.15
  6. Step 6: Final answer
    x = 167,948.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.