Home / 127,605.38-191,415.96-38,865.42

Finding the Fourth Proportional to 127,605.38, 191,415.96 and 38,865.42

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Solution

The fourth proportional to 127,605.38, 191,415.96 and 38,865.42 is: 58,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,605.38 : 191,415.96 = 38,865.42 : x
  2. Step 2: Convert to fraction form
    127,605.38/191,415.96 = 38,865.42/x
  3. Step 3: Cross multiply
    127,605.38x = 191,415.96 × 38,865.42
  4. Step 4: Simplify right side
    127,605.38x = 7,439,461,680.10
  5. Step 5: Solve for x
    x = 7,439,461,680.10/127,605.38
  6. Step 6: Final answer
    x = 58,300.54

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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.