Home / 127,668.20-191,502.30-83,431.40

Finding the Fourth Proportional to 127,668.20, 191,502.30 and 83,431.40

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Solution

The fourth proportional to 127,668.20, 191,502.30 and 83,431.40 is: 125,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,668.20 : 191,502.30 = 83,431.40 : x
  2. Step 2: Convert to fraction form
    127,668.20/191,502.30 = 83,431.40/x
  3. Step 3: Cross multiply
    127,668.20x = 191,502.30 × 83,431.40
  4. Step 4: Simplify right side
    127,668.20x = 15,977,304,992.22
  5. Step 5: Solve for x
    x = 15,977,304,992.22/127,668.20
  6. Step 6: Final answer
    x = 125,147.10

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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.