Home / 136,900.38-188,923.18-76,473.56

Finding the Fourth Proportional to 136,900.38, 188,923.18 and 76,473.56

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Solution

The fourth proportional to 136,900.38, 188,923.18 and 76,473.56 is: 105,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,900.38 : 188,923.18 = 76,473.56 : x
  2. Step 2: Convert to fraction form
    136,900.38/188,923.18 = 76,473.56/x
  3. Step 3: Cross multiply
    136,900.38x = 188,923.18 × 76,473.56
  4. Step 4: Simplify right side
    136,900.38x = 14,447,628,141.12
  5. Step 5: Solve for x
    x = 14,447,628,141.12/136,900.38
  6. Step 6: Final answer
    x = 105,533.88

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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.