Home / 127,478.88-191,240.19-38,741.36

Finding the Fourth Proportional to 127,478.88, 191,240.19 and 38,741.36

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Solution

The fourth proportional to 127,478.88, 191,240.19 and 38,741.36 is: 58,118.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,478.88 : 191,240.19 = 38,741.36 : x
  2. Step 2: Convert to fraction form
    127,478.88/191,240.19 = 38,741.36/x
  3. Step 3: Cross multiply
    127,478.88x = 191,240.19 × 38,741.36
  4. Step 4: Simplify right side
    127,478.88x = 7,408,904,091.06
  5. Step 5: Solve for x
    x = 7,408,904,091.06/127,478.88
  6. Step 6: Final answer
    x = 58,118.68

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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.