Home / 170,040.80-255,158.40-64,935.20

Finding the Fourth Proportional to 170,040.80, 255,158.40 and 64,935.20

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Solution

The fourth proportional to 170,040.80, 255,158.40 and 64,935.20 is: 97,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,040.80 : 255,158.40 = 64,935.20 : x
  2. Step 2: Convert to fraction form
    170,040.80/255,158.40 = 64,935.20/x
  3. Step 3: Cross multiply
    170,040.80x = 255,158.40 × 64,935.20
  4. Step 4: Simplify right side
    170,040.80x = 16,568,761,735.68
  5. Step 5: Solve for x
    x = 16,568,761,735.68/170,040.80
  6. Step 6: Final answer
    x = 97,439.92

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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.