Home / 127,389.32-191,111.46-38,649.96

Finding the Fourth Proportional to 127,389.32, 191,111.46 and 38,649.96

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Solution

The fourth proportional to 127,389.32, 191,111.46 and 38,649.96 is: 57,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,389.32 : 191,111.46 = 38,649.96 : x
  2. Step 2: Convert to fraction form
    127,389.32/191,111.46 = 38,649.96/x
  3. Step 3: Cross multiply
    127,389.32x = 191,111.46 × 38,649.96
  4. Step 4: Simplify right side
    127,389.32x = 7,386,450,284.54
  5. Step 5: Solve for x
    x = 7,386,450,284.54/127,389.32
  6. Step 6: Final answer
    x = 57,983.28

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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.