Home / 113,138.21-169,707.34-28,898.56

Finding the Fourth Proportional to 113,138.21, 169,707.34 and 28,898.56

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Solution

The fourth proportional to 113,138.21, 169,707.34 and 28,898.56 is: 43,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,138.21 : 169,707.34 = 28,898.56 : x
  2. Step 2: Convert to fraction form
    113,138.21/169,707.34 = 28,898.56/x
  3. Step 3: Cross multiply
    113,138.21x = 169,707.34 × 28,898.56
  4. Step 4: Simplify right side
    113,138.21x = 4,904,297,602.94
  5. Step 5: Solve for x
    x = 4,904,297,602.94/113,138.21
  6. Step 6: Final answer
    x = 43,347.85

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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.