Home / 170,519.76-235,230.66-130,163.40

Finding the Fourth Proportional to 170,519.76, 235,230.66 and 130,163.40

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Solution

The fourth proportional to 170,519.76, 235,230.66 and 130,163.40 is: 179,559.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,519.76 : 235,230.66 = 130,163.40 : x
  2. Step 2: Convert to fraction form
    170,519.76/235,230.66 = 130,163.40/x
  3. Step 3: Cross multiply
    170,519.76x = 235,230.66 × 130,163.40
  4. Step 4: Simplify right side
    170,519.76x = 30,618,422,489.84
  5. Step 5: Solve for x
    x = 30,618,422,489.84/170,519.76
  6. Step 6: Final answer
    x = 179,559.38

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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.