Home / 127,091.60-190,638.76-38,345.88

Finding the Fourth Proportional to 127,091.60, 190,638.76 and 38,345.88

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Solution

The fourth proportional to 127,091.60, 190,638.76 and 38,345.88 is: 57,519.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,091.60 : 190,638.76 = 38,345.88 : x
  2. Step 2: Convert to fraction form
    127,091.60/190,638.76 = 38,345.88/x
  3. Step 3: Cross multiply
    127,091.60x = 190,638.76 × 38,345.88
  4. Step 4: Simplify right side
    127,091.60x = 7,310,211,014.31
  5. Step 5: Solve for x
    x = 7,310,211,014.31/127,091.60
  6. Step 6: Final answer
    x = 57,519.23

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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.