Home / 117,166.34-161,688.69-63,450.11

Finding the Fourth Proportional to 117,166.34, 161,688.69 and 63,450.11

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Solution

The fourth proportional to 117,166.34, 161,688.69 and 63,450.11 is: 87,560.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,166.34 : 161,688.69 = 63,450.11 : x
  2. Step 2: Convert to fraction form
    117,166.34/161,688.69 = 63,450.11/x
  3. Step 3: Cross multiply
    117,166.34x = 161,688.69 × 63,450.11
  4. Step 4: Simplify right side
    117,166.34x = 10,259,164,357.81
  5. Step 5: Solve for x
    x = 10,259,164,357.81/117,166.34
  6. Step 6: Final answer
    x = 87,560.68

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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.