Home / 127,403.28-191,104.92-38,657.25

Finding the Fourth Proportional to 127,403.28, 191,104.92 and 38,657.25

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Solution

The fourth proportional to 127,403.28, 191,104.92 and 38,657.25 is: 57,985.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,403.28 : 191,104.92 = 38,657.25 : x
  2. Step 2: Convert to fraction form
    127,403.28/191,104.92 = 38,657.25/x
  3. Step 3: Cross multiply
    127,403.28x = 191,104.92 × 38,657.25
  4. Step 4: Simplify right side
    127,403.28x = 7,387,590,668.67
  5. Step 5: Solve for x
    x = 7,387,590,668.67/127,403.28
  6. Step 6: Final answer
    x = 57,985.88

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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.