Home / 127,555.15-191,360.41-38,806.35

Finding the Fourth Proportional to 127,555.15, 191,360.41 and 38,806.35

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Solution

The fourth proportional to 127,555.15, 191,360.41 and 38,806.35 is: 58,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,555.15 : 191,360.41 = 38,806.35 : x
  2. Step 2: Convert to fraction form
    127,555.15/191,360.41 = 38,806.35/x
  3. Step 3: Cross multiply
    127,555.15x = 191,360.41 × 38,806.35
  4. Step 4: Simplify right side
    127,555.15x = 7,425,999,525.00
  5. Step 5: Solve for x
    x = 7,425,999,525.00/127,555.15
  6. Step 6: Final answer
    x = 58,217.95

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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.