Home / 127,930.10-191,733.15-48,938.90

Finding the Fourth Proportional to 127,930.10, 191,733.15 and 48,938.90

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Solution

The fourth proportional to 127,930.10, 191,733.15 and 48,938.90 is: 73,346.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,930.10 : 191,733.15 = 48,938.90 : x
  2. Step 2: Convert to fraction form
    127,930.10/191,733.15 = 48,938.90/x
  3. Step 3: Cross multiply
    127,930.10x = 191,733.15 × 48,938.90
  4. Step 4: Simplify right side
    127,930.10x = 9,383,209,454.54
  5. Step 5: Solve for x
    x = 9,383,209,454.54/127,930.10
  6. Step 6: Final answer
    x = 73,346.38

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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.