Home / 117,335.07-161,920.89-63,619.92

Finding the Fourth Proportional to 117,335.07, 161,920.89 and 63,619.92

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Solution

The fourth proportional to 117,335.07, 161,920.89 and 63,619.92 is: 87,794.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,335.07 : 161,920.89 = 63,619.92 : x
  2. Step 2: Convert to fraction form
    117,335.07/161,920.89 = 63,619.92/x
  3. Step 3: Cross multiply
    117,335.07x = 161,920.89 × 63,619.92
  4. Step 4: Simplify right side
    117,335.07x = 10,301,394,068.13
  5. Step 5: Solve for x
    x = 10,301,394,068.13/117,335.07
  6. Step 6: Final answer
    x = 87,794.67

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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.