Home / 215,435.27-323,014.07-103,112.76

Finding the Fourth Proportional to 215,435.27, 323,014.07 and 103,112.76

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Solution

The fourth proportional to 215,435.27, 323,014.07 and 103,112.76 is: 154,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,435.27 : 323,014.07 = 103,112.76 : x
  2. Step 2: Convert to fraction form
    215,435.27/323,014.07 = 103,112.76/x
  3. Step 3: Cross multiply
    215,435.27x = 323,014.07 × 103,112.76
  4. Step 4: Simplify right side
    215,435.27x = 33,306,871,760.97
  5. Step 5: Solve for x
    x = 33,306,871,760.97/215,435.27
  6. Step 6: Final answer
    x = 154,602.69

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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.