Home / 106,900.59-147,425.36-91,788.51

Finding the Fourth Proportional to 106,900.59, 147,425.36 and 91,788.51

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Solution

The fourth proportional to 106,900.59, 147,425.36 and 91,788.51 is: 126,584.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,900.59 : 147,425.36 = 91,788.51 : x
  2. Step 2: Convert to fraction form
    106,900.59/147,425.36 = 91,788.51/x
  3. Step 3: Cross multiply
    106,900.59x = 147,425.36 × 91,788.51
  4. Step 4: Simplify right side
    106,900.59x = 13,531,953,671.67
  5. Step 5: Solve for x
    x = 13,531,953,671.67/106,900.59
  6. Step 6: Final answer
    x = 126,584.46

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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.