Home / 127,731.90-191,716.11-64,596.72

Finding the Fourth Proportional to 127,731.90, 191,716.11 and 64,596.72

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Solution

The fourth proportional to 127,731.90, 191,716.11 and 64,596.72 is: 96,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,731.90 : 191,716.11 = 64,596.72 : x
  2. Step 2: Convert to fraction form
    127,731.90/191,716.11 = 64,596.72/x
  3. Step 3: Cross multiply
    127,731.90x = 191,716.11 × 64,596.72
  4. Step 4: Simplify right side
    127,731.90x = 12,384,231,877.16
  5. Step 5: Solve for x
    x = 12,384,231,877.16/127,731.90
  6. Step 6: Final answer
    x = 96,954.89

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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.