Home / 170,986.29-235,989.78-115,770.57

Finding the Fourth Proportional to 170,986.29, 235,989.78 and 115,770.57

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Solution

The fourth proportional to 170,986.29, 235,989.78 and 115,770.57 is: 159,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,986.29 : 235,989.78 = 115,770.57 : x
  2. Step 2: Convert to fraction form
    170,986.29/235,989.78 = 115,770.57/x
  3. Step 3: Cross multiply
    170,986.29x = 235,989.78 × 115,770.57
  4. Step 4: Simplify right side
    170,986.29x = 27,320,671,344.77
  5. Step 5: Solve for x
    x = 27,320,671,344.77/170,986.29
  6. Step 6: Final answer
    x = 159,782.82

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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.