Home / 111,997.04-167,994.24-45,421.28

Finding the Fourth Proportional to 111,997.04, 167,994.24 and 45,421.28

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Solution

The fourth proportional to 111,997.04, 167,994.24 and 45,421.28 is: 68,131.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,997.04 : 167,994.24 = 45,421.28 : x
  2. Step 2: Convert to fraction form
    111,997.04/167,994.24 = 45,421.28/x
  3. Step 3: Cross multiply
    111,997.04x = 167,994.24 × 45,421.28
  4. Step 4: Simplify right side
    111,997.04x = 7,630,513,413.43
  5. Step 5: Solve for x
    x = 7,630,513,413.43/111,997.04
  6. Step 6: Final answer
    x = 68,131.38

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1.5x scale

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.