Home / 127,455.72-191,171.16-38,709.96

Finding the Fourth Proportional to 127,455.72, 191,171.16 and 38,709.96

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Solution

The fourth proportional to 127,455.72, 191,171.16 and 38,709.96 is: 58,061.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,455.72 : 191,171.16 = 38,709.96 : x
  2. Step 2: Convert to fraction form
    127,455.72/191,171.16 = 38,709.96/x
  3. Step 3: Cross multiply
    127,455.72x = 191,171.16 × 38,709.96
  4. Step 4: Simplify right side
    127,455.72x = 7,400,227,956.75
  5. Step 5: Solve for x
    x = 7,400,227,956.75/127,455.72
  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.