Home / 117,071.96-161,560.32-68,702.84

Finding the Fourth Proportional to 117,071.96, 161,560.32 and 68,702.84

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Solution

The fourth proportional to 117,071.96, 161,560.32 and 68,702.84 is: 94,810.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,071.96 : 161,560.32 = 68,702.84 : x
  2. Step 2: Convert to fraction form
    117,071.96/161,560.32 = 68,702.84/x
  3. Step 3: Cross multiply
    117,071.96x = 161,560.32 × 68,702.84
  4. Step 4: Simplify right side
    117,071.96x = 11,099,652,815.31
  5. Step 5: Solve for x
    x = 11,099,652,815.31/117,071.96
  6. Step 6: Final answer
    x = 94,810.51

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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.