Home / 136,982.44-189,039.90-76,551.04

Finding the Fourth Proportional to 136,982.44, 189,039.90 and 76,551.04

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Solution

The fourth proportional to 136,982.44, 189,039.90 and 76,551.04 is: 105,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,982.44 : 189,039.90 = 76,551.04 : x
  2. Step 2: Convert to fraction form
    136,982.44/189,039.90 = 76,551.04/x
  3. Step 3: Cross multiply
    136,982.44x = 189,039.90 × 76,551.04
  4. Step 4: Simplify right side
    136,982.44x = 14,471,200,946.50
  5. Step 5: Solve for x
    x = 14,471,200,946.50/136,982.44
  6. Step 6: Final answer
    x = 105,642.74

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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.