Home / 136,945.92-188,984.07-76,526.97

Finding the Fourth Proportional to 136,945.92, 188,984.07 and 76,526.97

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Solution

The fourth proportional to 136,945.92, 188,984.07 and 76,526.97 is: 105,606.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,945.92 : 188,984.07 = 76,526.97 : x
  2. Step 2: Convert to fraction form
    136,945.92/188,984.07 = 76,526.97/x
  3. Step 3: Cross multiply
    136,945.92x = 188,984.07 × 76,526.97
  4. Step 4: Simplify right side
    136,945.92x = 14,462,378,255.37
  5. Step 5: Solve for x
    x = 14,462,378,255.37/136,945.92
  6. Step 6: Final answer
    x = 105,606.49

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1.5x scale

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.