Home / 155,255.80-214,182.66-91,563.88

Finding the Fourth Proportional to 155,255.80, 214,182.66 and 91,563.88

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Solution

The fourth proportional to 155,255.80, 214,182.66 and 91,563.88 is: 126,316.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,255.80 : 214,182.66 = 91,563.88 : x
  2. Step 2: Convert to fraction form
    155,255.80/214,182.66 = 91,563.88/x
  3. Step 3: Cross multiply
    155,255.80x = 214,182.66 × 91,563.88
  4. Step 4: Simplify right side
    155,255.80x = 19,611,395,378.32
  5. Step 5: Solve for x
    x = 19,611,395,378.32/155,255.80
  6. Step 6: Final answer
    x = 126,316.67

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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.