Home / 84,670.20-126,875.70-80,004.60

Finding the Fourth Proportional to 84,670.20, 126,875.70 and 80,004.60

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Solution

The fourth proportional to 84,670.20, 126,875.70 and 80,004.60 is: 119,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,670.20 : 126,875.70 = 80,004.60 : x
  2. Step 2: Convert to fraction form
    84,670.20/126,875.70 = 80,004.60/x
  3. Step 3: Cross multiply
    84,670.20x = 126,875.70 × 80,004.60
  4. Step 4: Simplify right side
    84,670.20x = 10,150,639,628.22
  5. Step 5: Solve for x
    x = 10,150,639,628.22/84,670.20
  6. Step 6: Final answer
    x = 119,884.44

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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.