Home / 132,887.40-199,331.10-127,638.60

Finding the Fourth Proportional to 132,887.40, 199,331.10 and 127,638.60

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Solution

The fourth proportional to 132,887.40, 199,331.10 and 127,638.60 is: 191,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,887.40 : 199,331.10 = 127,638.60 : x
  2. Step 2: Convert to fraction form
    132,887.40/199,331.10 = 127,638.60/x
  3. Step 3: Cross multiply
    132,887.40x = 199,331.10 × 127,638.60
  4. Step 4: Simplify right side
    132,887.40x = 25,442,342,540.46
  5. Step 5: Solve for x
    x = 25,442,342,540.46/132,887.40
  6. Step 6: Final answer
    x = 191,457.90

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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.