Home / 155,621.10-214,748.37-91,964.82

Finding the Fourth Proportional to 155,621.10, 214,748.37 and 91,964.82

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Solution

The fourth proportional to 155,621.10, 214,748.37 and 91,964.82 is: 126,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,621.10 : 214,748.37 = 91,964.82 : x
  2. Step 2: Convert to fraction form
    155,621.10/214,748.37 = 91,964.82/x
  3. Step 3: Cross multiply
    155,621.10x = 214,748.37 × 91,964.82
  4. Step 4: Simplify right side
    155,621.10x = 19,749,295,192.34
  5. Step 5: Solve for x
    x = 19,749,295,192.34/155,621.10
  6. Step 6: Final answer
    x = 126,906.28

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1.5x scale

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.