Home / 89,845.20-134,573.40-79,995.60

Finding the Fourth Proportional to 89,845.20, 134,573.40 and 79,995.60

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Solution

The fourth proportional to 89,845.20, 134,573.40 and 79,995.60 is: 119,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,845.20 : 134,573.40 = 79,995.60 : x
  2. Step 2: Convert to fraction form
    89,845.20/134,573.40 = 79,995.60/x
  3. Step 3: Cross multiply
    89,845.20x = 134,573.40 × 79,995.60
  4. Step 4: Simplify right side
    89,845.20x = 10,765,279,877.04
  5. Step 5: Solve for x
    x = 10,765,279,877.04/89,845.20
  6. Step 6: Final answer
    x = 119,820.31

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1.5x scale

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.