Home / 118,981.86-178,485.09-40,102.24

Finding the Fourth Proportional to 118,981.86, 178,485.09 and 40,102.24

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Solution

The fourth proportional to 118,981.86, 178,485.09 and 40,102.24 is: 60,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,981.86 : 178,485.09 = 40,102.24 : x
  2. Step 2: Convert to fraction form
    118,981.86/178,485.09 = 40,102.24/x
  3. Step 3: Cross multiply
    118,981.86x = 178,485.09 × 40,102.24
  4. Step 4: Simplify right side
    118,981.86x = 7,157,651,992.03
  5. Step 5: Solve for x
    x = 7,157,651,992.03/118,981.86
  6. Step 6: Final answer
    x = 60,157.51

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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.