Home / 122,541.14-169,150.22-74,145.56

Finding the Fourth Proportional to 122,541.14, 169,150.22 and 74,145.56

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Solution

The fourth proportional to 122,541.14, 169,150.22 and 74,145.56 is: 102,347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,541.14 : 169,150.22 = 74,145.56 : x
  2. Step 2: Convert to fraction form
    122,541.14/169,150.22 = 74,145.56/x
  3. Step 3: Cross multiply
    122,541.14x = 169,150.22 × 74,145.56
  4. Step 4: Simplify right side
    122,541.14x = 12,541,737,786.02
  5. Step 5: Solve for x
    x = 12,541,737,786.02/122,541.14
  6. Step 6: Final answer
    x = 102,347.16

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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.