Home / 127,649.32-191,501.60-38,900.48

Finding the Fourth Proportional to 127,649.32, 191,501.60 and 38,900.48

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Solution

The fourth proportional to 127,649.32, 191,501.60 and 38,900.48 is: 58,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,649.32 : 191,501.60 = 38,900.48 : x
  2. Step 2: Convert to fraction form
    127,649.32/191,501.60 = 38,900.48/x
  3. Step 3: Cross multiply
    127,649.32x = 191,501.60 × 38,900.48
  4. Step 4: Simplify right side
    127,649.32x = 7,449,504,160.77
  5. Step 5: Solve for x
    x = 7,449,504,160.77/127,649.32
  6. Step 6: Final answer
    x = 58,359.14

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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.