Home / 127,543.79-191,308.85-38,790.37

Finding the Fourth Proportional to 127,543.79, 191,308.85 and 38,790.37

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Solution

The fourth proportional to 127,543.79, 191,308.85 and 38,790.37 is: 58,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,543.79 : 191,308.85 = 38,790.37 : x
  2. Step 2: Convert to fraction form
    127,543.79/191,308.85 = 38,790.37/x
  3. Step 3: Cross multiply
    127,543.79x = 191,308.85 × 38,790.37
  4. Step 4: Simplify right side
    127,543.79x = 7,420,941,993.54
  5. Step 5: Solve for x
    x = 7,420,941,993.54/127,543.79
  6. Step 6: Final answer
    x = 58,183.48

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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.