Home / 127,614.78-191,087.73-89,971.04

Finding the Fourth Proportional to 127,614.78, 191,087.73 and 89,971.04

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Solution

The fourth proportional to 127,614.78, 191,087.73 and 89,971.04 is: 134,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,614.78 : 191,087.73 = 89,971.04 : x
  2. Step 2: Convert to fraction form
    127,614.78/191,087.73 = 89,971.04/x
  3. Step 3: Cross multiply
    127,614.78x = 191,087.73 × 89,971.04
  4. Step 4: Simplify right side
    127,614.78x = 17,192,360,843.90
  5. Step 5: Solve for x
    x = 17,192,360,843.90/127,614.78
  6. Step 6: Final answer
    x = 134,720.77

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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.