Home / 122,150.40-168,577.78-67,715.88

Finding the Fourth Proportional to 122,150.40, 168,577.78 and 67,715.88

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Solution

The fourth proportional to 122,150.40, 168,577.78 and 67,715.88 is: 93,453.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,150.40 : 168,577.78 = 67,715.88 : x
  2. Step 2: Convert to fraction form
    122,150.40/168,577.78 = 67,715.88/x
  3. Step 3: Cross multiply
    122,150.40x = 168,577.78 × 67,715.88
  4. Step 4: Simplify right side
    122,150.40x = 11,415,392,721.15
  5. Step 5: Solve for x
    x = 11,415,392,721.15/122,150.40
  6. Step 6: Final answer
    x = 93,453.58

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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.