Home / 84,867.20-127,041.60-66,204.80

Finding the Fourth Proportional to 84,867.20, 127,041.60 and 66,204.80

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Solution

The fourth proportional to 84,867.20, 127,041.60 and 66,204.80 is: 99,105.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,867.20 : 127,041.60 = 66,204.80 : x
  2. Step 2: Convert to fraction form
    84,867.20/127,041.60 = 66,204.80/x
  3. Step 3: Cross multiply
    84,867.20x = 127,041.60 × 66,204.80
  4. Step 4: Simplify right side
    84,867.20x = 8,410,763,719.68
  5. Step 5: Solve for x
    x = 8,410,763,719.68/84,867.20
  6. Step 6: Final answer
    x = 99,105.00

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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.