Home / 117,428.49-161,054.93-112,606.11

Finding the Fourth Proportional to 117,428.49, 161,054.93 and 112,606.11

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Solution

The fourth proportional to 117,428.49, 161,054.93 and 112,606.11 is: 154,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,428.49 : 161,054.93 = 112,606.11 : x
  2. Step 2: Convert to fraction form
    117,428.49/161,054.93 = 112,606.11/x
  3. Step 3: Cross multiply
    117,428.49x = 161,054.93 × 112,606.11
  4. Step 4: Simplify right side
    117,428.49x = 18,135,769,445.14
  5. Step 5: Solve for x
    x = 18,135,769,445.14/117,428.49
  6. Step 6: Final answer
    x = 154,440.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.