Home / 122,649.40-169,251.73-68,937.36

Finding the Fourth Proportional to 122,649.40, 169,251.73 and 68,937.36

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Solution

The fourth proportional to 122,649.40, 169,251.73 and 68,937.36 is: 95,131.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,649.40 : 169,251.73 = 68,937.36 : x
  2. Step 2: Convert to fraction form
    122,649.40/169,251.73 = 68,937.36/x
  3. Step 3: Cross multiply
    122,649.40x = 169,251.73 × 68,937.36
  4. Step 4: Simplify right side
    122,649.40x = 11,667,767,441.63
  5. Step 5: Solve for x
    x = 11,667,767,441.63/122,649.40
  6. Step 6: Final answer
    x = 95,131.06

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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.