Home / 155,356.20-214,336.26-91,662.12

Finding the Fourth Proportional to 155,356.20, 214,336.26 and 91,662.12

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Solution

The fourth proportional to 155,356.20, 214,336.26 and 91,662.12 is: 126,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,356.20 : 214,336.26 = 91,662.12 : x
  2. Step 2: Convert to fraction form
    155,356.20/214,336.26 = 91,662.12/x
  3. Step 3: Cross multiply
    155,356.20x = 214,336.26 × 91,662.12
  4. Step 4: Simplify right side
    155,356.20x = 19,646,515,984.47
  5. Step 5: Solve for x
    x = 19,646,515,984.47/155,356.20
  6. Step 6: Final answer
    x = 126,461.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.