Home / 126,637.66-189,956.84-51,757.81

Finding the Fourth Proportional to 126,637.66, 189,956.84 and 51,757.81

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Solution

The fourth proportional to 126,637.66, 189,956.84 and 51,757.81 is: 77,636.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,637.66 : 189,956.84 = 51,757.81 : x
  2. Step 2: Convert to fraction form
    126,637.66/189,956.84 = 51,757.81/x
  3. Step 3: Cross multiply
    126,637.66x = 189,956.84 × 51,757.81
  4. Step 4: Simplify right side
    126,637.66x = 9,831,750,032.92
  5. Step 5: Solve for x
    x = 9,831,750,032.92/126,637.66
  6. Step 6: Final answer
    x = 77,636.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.