Home / 122,326.56-169,143.66-106,580.16

Finding the Fourth Proportional to 122,326.56, 169,143.66 and 106,580.16

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Solution

The fourth proportional to 122,326.56, 169,143.66 and 106,580.16 is: 147,370.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,326.56 : 169,143.66 = 106,580.16 : x
  2. Step 2: Convert to fraction form
    122,326.56/169,143.66 = 106,580.16/x
  3. Step 3: Cross multiply
    122,326.56x = 169,143.66 × 106,580.16
  4. Step 4: Simplify right side
    122,326.56x = 18,027,358,345.79
  5. Step 5: Solve for x
    x = 18,027,358,345.79/122,326.56
  6. Step 6: Final answer
    x = 147,370.76

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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.