Home / 136,944.64-188,981.53-76,516.12

Finding the Fourth Proportional to 136,944.64, 188,981.53 and 76,516.12

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Solution

The fourth proportional to 136,944.64, 188,981.53 and 76,516.12 is: 105,591.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,944.64 : 188,981.53 = 76,516.12 : x
  2. Step 2: Convert to fraction form
    136,944.64/188,981.53 = 76,516.12/x
  3. Step 3: Cross multiply
    136,944.64x = 188,981.53 × 76,516.12
  4. Step 4: Simplify right side
    136,944.64x = 14,460,133,427.26
  5. Step 5: Solve for x
    x = 14,460,133,427.26/136,944.64
  6. Step 6: Final answer
    x = 105,591.09

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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.