Home / 122,215.09-168,656.28-68,500.11

Finding the Fourth Proportional to 122,215.09, 168,656.28 and 68,500.11

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Solution

The fourth proportional to 122,215.09, 168,656.28 and 68,500.11 is: 94,529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,215.09 : 168,656.28 = 68,500.11 : x
  2. Step 2: Convert to fraction form
    122,215.09/168,656.28 = 68,500.11/x
  3. Step 3: Cross multiply
    122,215.09x = 168,656.28 × 68,500.11
  4. Step 4: Simplify right side
    122,215.09x = 11,552,973,262.71
  5. Step 5: Solve for x
    x = 11,552,973,262.71/122,215.09
  6. Step 6: Final answer
    x = 94,529.85

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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.