Home / 127,977.85-191,689.74-83,469.58

Finding the Fourth Proportional to 127,977.85, 191,689.74 and 83,469.58

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Solution

The fourth proportional to 127,977.85, 191,689.74 and 83,469.58 is: 125,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,977.85 : 191,689.74 = 83,469.58 : x
  2. Step 2: Convert to fraction form
    127,977.85/191,689.74 = 83,469.58/x
  3. Step 3: Cross multiply
    127,977.85x = 191,689.74 × 83,469.58
  4. Step 4: Simplify right side
    127,977.85x = 16,000,262,088.11
  5. Step 5: Solve for x
    x = 16,000,262,088.11/127,977.85
  6. Step 6: Final answer
    x = 125,023.68

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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.