Home / 118,754.40-178,131.60-30,008.16

Finding the Fourth Proportional to 118,754.40, 178,131.60 and 30,008.16

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Solution

The fourth proportional to 118,754.40, 178,131.60 and 30,008.16 is: 45,012.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,754.40 : 178,131.60 = 30,008.16 : x
  2. Step 2: Convert to fraction form
    118,754.40/178,131.60 = 30,008.16/x
  3. Step 3: Cross multiply
    118,754.40x = 178,131.60 × 30,008.16
  4. Step 4: Simplify right side
    118,754.40x = 5,345,401,553.86
  5. Step 5: Solve for x
    x = 5,345,401,553.86/118,754.40
  6. Step 6: Final answer
    x = 45,012.24

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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.