Home / 130,890.80-196,336.20-84,004.40

Finding the Fourth Proportional to 130,890.80, 196,336.20 and 84,004.40

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Solution

The fourth proportional to 130,890.80, 196,336.20 and 84,004.40 is: 126,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,890.80 : 196,336.20 = 84,004.40 : x
  2. Step 2: Convert to fraction form
    130,890.80/196,336.20 = 84,004.40/x
  3. Step 3: Cross multiply
    130,890.80x = 196,336.20 × 84,004.40
  4. Step 4: Simplify right side
    130,890.80x = 16,493,104,679.28
  5. Step 5: Solve for x
    x = 16,493,104,679.28/130,890.80
  6. Step 6: Final answer
    x = 126,006.60

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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.