Home / 105,416.52-158,123.92-43,043.28

Finding the Fourth Proportional to 105,416.52, 158,123.92 and 43,043.28

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Solution

The fourth proportional to 105,416.52, 158,123.92 and 43,043.28 is: 64,564.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,416.52 : 158,123.92 = 43,043.28 : x
  2. Step 2: Convert to fraction form
    105,416.52/158,123.92 = 43,043.28/x
  3. Step 3: Cross multiply
    105,416.52x = 158,123.92 × 43,043.28
  4. Step 4: Simplify right side
    105,416.52x = 6,806,172,163.26
  5. Step 5: Solve for x
    x = 6,806,172,163.26/105,416.52
  6. Step 6: Final answer
    x = 64,564.57

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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.