Home / 126,315.96-189,309.40-51,348.53

Finding the Fourth Proportional to 126,315.96, 189,309.40 and 51,348.53

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Solution

The fourth proportional to 126,315.96, 189,309.40 and 51,348.53 is: 76,955.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,315.96 : 189,309.40 = 51,348.53 : x
  2. Step 2: Convert to fraction form
    126,315.96/189,309.40 = 51,348.53/x
  3. Step 3: Cross multiply
    126,315.96x = 189,309.40 × 51,348.53
  4. Step 4: Simplify right side
    126,315.96x = 9,720,759,750.08
  5. Step 5: Solve for x
    x = 9,720,759,750.08/126,315.96
  6. Step 6: Final answer
    x = 76,955.91

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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.