Home / 103,134.13-154,745.30-43,176.61

Finding the Fourth Proportional to 103,134.13, 154,745.30 and 43,176.61

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Solution

The fourth proportional to 103,134.13, 154,745.30 and 43,176.61 is: 64,783.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,134.13 : 154,745.30 = 43,176.61 : x
  2. Step 2: Convert to fraction form
    103,134.13/154,745.30 = 43,176.61/x
  3. Step 3: Cross multiply
    103,134.13x = 154,745.30 × 43,176.61
  4. Step 4: Simplify right side
    103,134.13x = 6,681,377,768.81
  5. Step 5: Solve for x
    x = 6,681,377,768.81/103,134.13
  6. Step 6: Final answer
    x = 64,783.38

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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.