Home / 122,576.48-169,173.84-74,857.28

Finding the Fourth Proportional to 122,576.48, 169,173.84 and 74,857.28

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Solution

The fourth proportional to 122,576.48, 169,173.84 and 74,857.28 is: 103,314.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,576.48 : 169,173.84 = 74,857.28 : x
  2. Step 2: Convert to fraction form
    122,576.48/169,173.84 = 74,857.28/x
  3. Step 3: Cross multiply
    122,576.48x = 169,173.84 × 74,857.28
  4. Step 4: Simplify right side
    122,576.48x = 12,663,893,509.56
  5. Step 5: Solve for x
    x = 12,663,893,509.56/122,576.48
  6. Step 6: Final answer
    x = 103,314.22

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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.