Home / 127,455.69-191,171.10-38,709.97

Finding the Fourth Proportional to 127,455.69, 191,171.10 and 38,709.97

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Solution

The fourth proportional to 127,455.69, 191,171.10 and 38,709.97 is: 58,061.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,455.69 : 191,171.10 = 38,709.97 : x
  2. Step 2: Convert to fraction form
    127,455.69/191,171.10 = 38,709.97/x
  3. Step 3: Cross multiply
    127,455.69x = 191,171.10 × 38,709.97
  4. Step 4: Simplify right side
    127,455.69x = 7,400,227,213.10
  5. Step 5: Solve for x
    x = 7,400,227,213.10/127,455.69
  6. Step 6: Final answer
    x = 58,061.17

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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.