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Finding the Third Proportional to 77,409.84 and 114,679.13

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Solution

The third proportional to 77,409.84 and 114,679.13 is: 169,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,409.84 : 114,679.13 = 114,679.13 : x
  2. Step 2: Convert to fraction form
    77,409.84/114,679.13 = 114,679.13/x
  3. Step 3: Cross multiply
    77,409.84x = 114,679.13 × 114,679.13
  4. Step 4: Simplify right side
    77,409.84x = 13,151,301,710.77
  5. Step 5: Solve for x
    x = 13,151,301,710.77/77,409.84
  6. Step 6: Final answer
    x = 169,891.85

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.