Home / 106,403.35-159,628.38-31,529.35

Finding the Fourth Proportional to 106,403.35, 159,628.38 and 31,529.35

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Solution

The fourth proportional to 106,403.35, 159,628.38 and 31,529.35 is: 47,300.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,403.35 : 159,628.38 = 31,529.35 : x
  2. Step 2: Convert to fraction form
    106,403.35/159,628.38 = 31,529.35/x
  3. Step 3: Cross multiply
    106,403.35x = 159,628.38 × 31,529.35
  4. Step 4: Simplify right side
    106,403.35x = 5,032,979,062.95
  5. Step 5: Solve for x
    x = 5,032,979,062.95/106,403.35
  6. Step 6: Final answer
    x = 47,300.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.