Home / 127,558.40-191,340.75-61,005.56

Finding the Fourth Proportional to 127,558.40, 191,340.75 and 61,005.56

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Solution

The fourth proportional to 127,558.40, 191,340.75 and 61,005.56 is: 91,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,558.40 : 191,340.75 = 61,005.56 : x
  2. Step 2: Convert to fraction form
    127,558.40/191,340.75 = 61,005.56/x
  3. Step 3: Cross multiply
    127,558.40x = 191,340.75 × 61,005.56
  4. Step 4: Simplify right side
    127,558.40x = 11,672,849,604.57
  5. Step 5: Solve for x
    x = 11,672,849,604.57/127,558.40
  6. Step 6: Final answer
    x = 91,509.85

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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.