Home / 157,921.84-217,936.38-86,301.28

Finding the Fourth Proportional to 157,921.84, 217,936.38 and 86,301.28

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Solution

The fourth proportional to 157,921.84, 217,936.38 and 86,301.28 is: 119,098.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,921.84 : 217,936.38 = 86,301.28 : x
  2. Step 2: Convert to fraction form
    157,921.84/217,936.38 = 86,301.28/x
  3. Step 3: Cross multiply
    157,921.84x = 217,936.38 × 86,301.28
  4. Step 4: Simplify right side
    157,921.84x = 18,808,188,552.57
  5. Step 5: Solve for x
    x = 18,808,188,552.57/157,921.84
  6. Step 6: Final answer
    x = 119,098.08

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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.