Home / 106,636.41-147,182.37-76,455.81

Finding the Fourth Proportional to 106,636.41, 147,182.37 and 76,455.81

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Solution

The fourth proportional to 106,636.41, 147,182.37 and 76,455.81 is: 105,526.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,636.41 : 147,182.37 = 76,455.81 : x
  2. Step 2: Convert to fraction form
    106,636.41/147,182.37 = 76,455.81/x
  3. Step 3: Cross multiply
    106,636.41x = 147,182.37 × 76,455.81
  4. Step 4: Simplify right side
    106,636.41x = 11,252,947,316.07
  5. Step 5: Solve for x
    x = 11,252,947,316.07/106,636.41
  6. Step 6: Final answer
    x = 105,526.31

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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.