Home / 119,434.96-164,735.94-81,172.05

Finding the Fourth Proportional to 119,434.96, 164,735.94 and 81,172.05

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Solution

The fourth proportional to 119,434.96, 164,735.94 and 81,172.05 is: 111,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,434.96 : 164,735.94 = 81,172.05 : x
  2. Step 2: Convert to fraction form
    119,434.96/164,735.94 = 81,172.05/x
  3. Step 3: Cross multiply
    119,434.96x = 164,735.94 × 81,172.05
  4. Step 4: Simplify right side
    119,434.96x = 13,371,953,958.48
  5. Step 5: Solve for x
    x = 13,371,953,958.48/119,434.96
  6. Step 6: Final answer
    x = 111,960.13

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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.