Home / 136,997.04-189,052.36-76,568.18

Finding the Fourth Proportional to 136,997.04, 189,052.36 and 76,568.18

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Solution

The fourth proportional to 136,997.04, 189,052.36 and 76,568.18 is: 105,662.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,997.04 : 189,052.36 = 76,568.18 : x
  2. Step 2: Convert to fraction form
    136,997.04/189,052.36 = 76,568.18/x
  3. Step 3: Cross multiply
    136,997.04x = 189,052.36 × 76,568.18
  4. Step 4: Simplify right side
    136,997.04x = 14,475,395,129.90
  5. Step 5: Solve for x
    x = 14,475,395,129.90/136,997.04
  6. Step 6: Final answer
    x = 105,662.10

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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.