Home / 127,849.60-191,803.20-39,107.20

Finding the Fourth Proportional to 127,849.60, 191,803.20 and 39,107.20

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Solution

The fourth proportional to 127,849.60, 191,803.20 and 39,107.20 is: 58,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,849.60 : 191,803.20 = 39,107.20 : x
  2. Step 2: Convert to fraction form
    127,849.60/191,803.20 = 39,107.20/x
  3. Step 3: Cross multiply
    127,849.60x = 191,803.20 × 39,107.20
  4. Step 4: Simplify right side
    127,849.60x = 7,500,886,103.04
  5. Step 5: Solve for x
    x = 7,500,886,103.04/127,849.60
  6. Step 6: Final answer
    x = 58,669.61

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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.