Home / 126,930.61-190,395.92-64,644.85

Finding the Fourth Proportional to 126,930.61, 190,395.92 and 64,644.85

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Solution

The fourth proportional to 126,930.61, 190,395.92 and 64,644.85 is: 96,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,930.61 : 190,395.92 = 64,644.85 : x
  2. Step 2: Convert to fraction form
    126,930.61/190,395.92 = 64,644.85/x
  3. Step 3: Cross multiply
    126,930.61x = 190,395.92 × 64,644.85
  4. Step 4: Simplify right side
    126,930.61x = 12,308,115,689.01
  5. Step 5: Solve for x
    x = 12,308,115,689.01/126,930.61
  6. Step 6: Final answer
    x = 96,967.28

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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.