Home / 127,916.63-191,875.41-39,169.78

Finding the Fourth Proportional to 127,916.63, 191,875.41 and 39,169.78

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Solution

The fourth proportional to 127,916.63, 191,875.41 and 39,169.78 is: 58,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,916.63 : 191,875.41 = 39,169.78 : x
  2. Step 2: Convert to fraction form
    127,916.63/191,875.41 = 39,169.78/x
  3. Step 3: Cross multiply
    127,916.63x = 191,875.41 × 39,169.78
  4. Step 4: Simplify right side
    127,916.63x = 7,515,716,637.73
  5. Step 5: Solve for x
    x = 7,515,716,637.73/127,916.63
  6. Step 6: Final answer
    x = 58,754.80

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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.