Home / 170,469.12-255,840.64-76,983.04

Finding the Fourth Proportional to 170,469.12, 255,840.64 and 76,983.04

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Solution

The fourth proportional to 170,469.12, 255,840.64 and 76,983.04 is: 115,536.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,469.12 : 255,840.64 = 76,983.04 : x
  2. Step 2: Convert to fraction form
    170,469.12/255,840.64 = 76,983.04/x
  3. Step 3: Cross multiply
    170,469.12x = 255,840.64 × 76,983.04
  4. Step 4: Simplify right side
    170,469.12x = 19,695,390,222.75
  5. Step 5: Solve for x
    x = 19,695,390,222.75/170,469.12
  6. Step 6: Final answer
    x = 115,536.41

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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.