Home / 106,754.36-147,335.66-61,431.41

Finding the Fourth Proportional to 106,754.36, 147,335.66 and 61,431.41

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Solution

The fourth proportional to 106,754.36, 147,335.66 and 61,431.41 is: 84,783.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,754.36 : 147,335.66 = 61,431.41 : x
  2. Step 2: Convert to fraction form
    106,754.36/147,335.66 = 61,431.41/x
  3. Step 3: Cross multiply
    106,754.36x = 147,335.66 × 61,431.41
  4. Step 4: Simplify right side
    106,754.36x = 9,051,037,628.63
  5. Step 5: Solve for x
    x = 9,051,037,628.63/106,754.36
  6. Step 6: Final answer
    x = 84,783.78

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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.