Home / 127,720.46-191,610.48-38,973.80

Finding the Fourth Proportional to 127,720.46, 191,610.48 and 38,973.80

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Solution

The fourth proportional to 127,720.46, 191,610.48 and 38,973.80 is: 58,469.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,720.46 : 191,610.48 = 38,973.80 : x
  2. Step 2: Convert to fraction form
    127,720.46/191,610.48 = 38,973.80/x
  3. Step 3: Cross multiply
    127,720.46x = 191,610.48 × 38,973.80
  4. Step 4: Simplify right side
    127,720.46x = 7,467,788,525.42
  5. Step 5: Solve for x
    x = 7,467,788,525.42/127,720.46
  6. Step 6: Final answer
    x = 58,469.79

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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.