Home / 136,617.64-188,533.17-76,192.12

Finding the Fourth Proportional to 136,617.64, 188,533.17 and 76,192.12

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Solution

The fourth proportional to 136,617.64, 188,533.17 and 76,192.12 is: 105,145.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,617.64 : 188,533.17 = 76,192.12 : x
  2. Step 2: Convert to fraction form
    136,617.64/188,533.17 = 76,192.12/x
  3. Step 3: Cross multiply
    136,617.64x = 188,533.17 × 76,192.12
  4. Step 4: Simplify right side
    136,617.64x = 14,364,741,912.62
  5. Step 5: Solve for x
    x = 14,364,741,912.62/136,617.64
  6. Step 6: Final answer
    x = 105,145.59

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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.