Home / 127,537.45-191,043.66-74,819.81

Finding the Fourth Proportional to 127,537.45, 191,043.66 and 74,819.81

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Solution

The fourth proportional to 127,537.45, 191,043.66 and 74,819.81 is: 112,075.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,537.45 : 191,043.66 = 74,819.81 : x
  2. Step 2: Convert to fraction form
    127,537.45/191,043.66 = 74,819.81/x
  3. Step 3: Cross multiply
    127,537.45x = 191,043.66 × 74,819.81
  4. Step 4: Simplify right side
    127,537.45x = 14,293,850,342.90
  5. Step 5: Solve for x
    x = 14,293,850,342.90/127,537.45
  6. Step 6: Final answer
    x = 112,075.71

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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.