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Finding the Fourth Proportional to 117,252, 161,941.41 and 79,460.64

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Solution

The fourth proportional to 117,252, 161,941.41 and 79,460.64 is: 109,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,252 : 161,941.41 = 79,460.64 : x
  2. Step 2: Convert to fraction form
    117,252/161,941.41 = 79,460.64/x
  3. Step 3: Cross multiply
    117,252x = 161,941.41 × 79,460.64
  4. Step 4: Simplify right side
    117,252x = 12,867,968,081.10
  5. Step 5: Solve for x
    x = 12,867,968,081.10/117,252
  6. Step 6: Final answer
    x = 109,746.26

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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.