Home / 127,632.90-191,449.38-57,430.20

Finding the Fourth Proportional to 127,632.90, 191,449.38 and 57,430.20

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Solution

The fourth proportional to 127,632.90, 191,449.38 and 57,430.20 is: 86,145.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,632.90 : 191,449.38 = 57,430.20 : x
  2. Step 2: Convert to fraction form
    127,632.90/191,449.38 = 57,430.20/x
  3. Step 3: Cross multiply
    127,632.90x = 191,449.38 × 57,430.20
  4. Step 4: Simplify right side
    127,632.90x = 10,994,976,183.28
  5. Step 5: Solve for x
    x = 10,994,976,183.28/127,632.90
  6. Step 6: Final answer
    x = 86,145.31

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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.