Home / 157,744.36-217,712.22-100,323.82

Finding the Fourth Proportional to 157,744.36, 217,712.22 and 100,323.82

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Solution

The fourth proportional to 157,744.36, 217,712.22 and 100,323.82 is: 138,462.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,744.36 : 217,712.22 = 100,323.82 : x
  2. Step 2: Convert to fraction form
    157,744.36/217,712.22 = 100,323.82/x
  3. Step 3: Cross multiply
    157,744.36x = 217,712.22 × 100,323.82
  4. Step 4: Simplify right side
    157,744.36x = 21,841,721,571.08
  5. Step 5: Solve for x
    x = 21,841,721,571.08/157,744.36
  6. Step 6: Final answer
    x = 138,462.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.