Home / 136,971.64-189,020.85-83,246.62

Finding the Fourth Proportional to 136,971.64, 189,020.85 and 83,246.62

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Solution

The fourth proportional to 136,971.64, 189,020.85 and 83,246.62 is: 114,880.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,971.64 : 189,020.85 = 83,246.62 : x
  2. Step 2: Convert to fraction form
    136,971.64/189,020.85 = 83,246.62/x
  3. Step 3: Cross multiply
    136,971.64x = 189,020.85 × 83,246.62
  4. Step 4: Simplify right side
    136,971.64x = 15,735,346,872.03
  5. Step 5: Solve for x
    x = 15,735,346,872.03/136,971.64
  6. Step 6: Final answer
    x = 114,880.33

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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.