Home / 136,680.28-188,618.87-76,250.93

Finding the Fourth Proportional to 136,680.28, 188,618.87 and 76,250.93

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Solution

The fourth proportional to 136,680.28, 188,618.87 and 76,250.93 is: 105,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,680.28 : 188,618.87 = 76,250.93 : x
  2. Step 2: Convert to fraction form
    136,680.28/188,618.87 = 76,250.93/x
  3. Step 3: Cross multiply
    136,680.28x = 188,618.87 × 76,250.93
  4. Step 4: Simplify right side
    136,680.28x = 14,382,362,928.70
  5. Step 5: Solve for x
    x = 14,382,362,928.70/136,680.28
  6. Step 6: Final answer
    x = 105,226.32

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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.