Home / 117,252-161,837.28-66,980.16

Finding the Fourth Proportional to 117,252, 161,837.28 and 66,980.16

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Solution

The fourth proportional to 117,252, 161,837.28 and 66,980.16 is: 92,449.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,252 : 161,837.28 = 66,980.16 : x
  2. Step 2: Convert to fraction form
    117,252/161,837.28 = 66,980.16/x
  3. Step 3: Cross multiply
    117,252x = 161,837.28 × 66,980.16
  4. Step 4: Simplify right side
    117,252x = 10,839,886,908.36
  5. Step 5: Solve for x
    x = 10,839,886,908.36/117,252
  6. Step 6: Final answer
    x = 92,449.48

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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.