Home / 122,475.52-169,014.78-68,759.20

Finding the Fourth Proportional to 122,475.52, 169,014.78 and 68,759.20

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Solution

The fourth proportional to 122,475.52, 169,014.78 and 68,759.20 is: 94,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,475.52 : 169,014.78 = 68,759.20 : x
  2. Step 2: Convert to fraction form
    122,475.52/169,014.78 = 68,759.20/x
  3. Step 3: Cross multiply
    122,475.52x = 169,014.78 × 68,759.20
  4. Step 4: Simplify right side
    122,475.52x = 11,621,321,060.98
  5. Step 5: Solve for x
    x = 11,621,321,060.98/122,475.52
  6. Step 6: Final answer
    x = 94,886.89

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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.