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Finding the Third Proportional to 86,158.69 and 189,307.13

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Solution

The third proportional to 86,158.69 and 189,307.13 is: 415,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,158.69 : 189,307.13 = 189,307.13 : x
  2. Step 2: Convert to fraction form
    86,158.69/189,307.13 = 189,307.13/x
  3. Step 3: Cross multiply
    86,158.69x = 189,307.13 × 189,307.13
  4. Step 4: Simplify right side
    86,158.69x = 35,837,187,575.77
  5. Step 5: Solve for x
    x = 35,837,187,575.77/86,158.69
  6. Step 6: Final answer
    x = 415,943.98

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.