Home / 127,039.80-190,497.96-38,276.76

Finding the Fourth Proportional to 127,039.80, 190,497.96 and 38,276.76

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Solution

The fourth proportional to 127,039.80, 190,497.96 and 38,276.76 is: 57,396.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,039.80 : 190,497.96 = 38,276.76 : x
  2. Step 2: Convert to fraction form
    127,039.80/190,497.96 = 38,276.76/x
  3. Step 3: Cross multiply
    127,039.80x = 190,497.96 × 38,276.76
  4. Step 4: Simplify right side
    127,039.80x = 7,291,644,695.41
  5. Step 5: Solve for x
    x = 7,291,644,695.41/127,039.80
  6. Step 6: Final answer
    x = 57,396.54

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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.