Home / 138,496.07-191,082.08-84,725.03

Finding the Fourth Proportional to 138,496.07, 191,082.08 and 84,725.03

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Solution

The fourth proportional to 138,496.07, 191,082.08 and 84,725.03 is: 116,894.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,496.07 : 191,082.08 = 84,725.03 : x
  2. Step 2: Convert to fraction form
    138,496.07/191,082.08 = 84,725.03/x
  3. Step 3: Cross multiply
    138,496.07x = 191,082.08 × 84,725.03
  4. Step 4: Simplify right side
    138,496.07x = 16,189,433,581.43
  5. Step 5: Solve for x
    x = 16,189,433,581.43/138,496.07
  6. Step 6: Final answer
    x = 116,894.54

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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.