Home / 127,361.28-191,030.20-43,111.81

Finding the Fourth Proportional to 127,361.28, 191,030.20 and 43,111.81

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Solution

The fourth proportional to 127,361.28, 191,030.20 and 43,111.81 is: 64,663.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,361.28 : 191,030.20 = 43,111.81 : x
  2. Step 2: Convert to fraction form
    127,361.28/191,030.20 = 43,111.81/x
  3. Step 3: Cross multiply
    127,361.28x = 191,030.20 × 43,111.81
  4. Step 4: Simplify right side
    127,361.28x = 8,235,657,578.88
  5. Step 5: Solve for x
    x = 8,235,657,578.88/127,361.28
  6. Step 6: Final answer
    x = 64,663.75

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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.