Home / 127,949.67-191,694.65-75,330.45

Finding the Fourth Proportional to 127,949.67, 191,694.65 and 75,330.45

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Solution

The fourth proportional to 127,949.67, 191,694.65 and 75,330.45 is: 112,860.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,949.67 : 191,694.65 = 75,330.45 : x
  2. Step 2: Convert to fraction form
    127,949.67/191,694.65 = 75,330.45/x
  3. Step 3: Cross multiply
    127,949.67x = 191,694.65 × 75,330.45
  4. Step 4: Simplify right side
    127,949.67x = 14,440,443,870.44
  5. Step 5: Solve for x
    x = 14,440,443,870.44/127,949.67
  6. Step 6: Final answer
    x = 112,860.34

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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.