Home / 131,301.40-196,952.10-86,200.60

Finding the Fourth Proportional to 131,301.40, 196,952.10 and 86,200.60

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Solution

The fourth proportional to 131,301.40, 196,952.10 and 86,200.60 is: 129,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,301.40 : 196,952.10 = 86,200.60 : x
  2. Step 2: Convert to fraction form
    131,301.40/196,952.10 = 86,200.60/x
  3. Step 3: Cross multiply
    131,301.40x = 196,952.10 × 86,200.60
  4. Step 4: Simplify right side
    131,301.40x = 16,977,389,191.26
  5. Step 5: Solve for x
    x = 16,977,389,191.26/131,301.40
  6. Step 6: Final answer
    x = 129,300.90

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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.