Home / 117,190.72-161,695.20-69,435.82

Finding the Fourth Proportional to 117,190.72, 161,695.20 and 69,435.82

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Solution

The fourth proportional to 117,190.72, 161,695.20 and 69,435.82 is: 95,804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,190.72 : 161,695.20 = 69,435.82 : x
  2. Step 2: Convert to fraction form
    117,190.72/161,695.20 = 69,435.82/x
  3. Step 3: Cross multiply
    117,190.72x = 161,695.20 × 69,435.82
  4. Step 4: Simplify right side
    117,190.72x = 11,227,438,802.06
  5. Step 5: Solve for x
    x = 11,227,438,802.06/117,190.72
  6. Step 6: Final answer
    x = 95,804.85

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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.