Home / 136,591.32-188,482.20-76,156.28

Finding the Fourth Proportional to 136,591.32, 188,482.20 and 76,156.28

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Solution

The fourth proportional to 136,591.32, 188,482.20 and 76,156.28 is: 105,087.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,591.32 : 188,482.20 = 76,156.28 : x
  2. Step 2: Convert to fraction form
    136,591.32/188,482.20 = 76,156.28/x
  3. Step 3: Cross multiply
    136,591.32x = 188,482.20 × 76,156.28
  4. Step 4: Simplify right side
    136,591.32x = 14,354,103,198.22
  5. Step 5: Solve for x
    x = 14,354,103,198.22/136,591.32
  6. Step 6: Final answer
    x = 105,087.96

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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.