Home / 113,145.49-169,718.23-28,905.83

Finding the Fourth Proportional to 113,145.49, 169,718.23 and 28,905.83

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Solution

The fourth proportional to 113,145.49, 169,718.23 and 28,905.83 is: 43,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,145.49 : 169,718.23 = 28,905.83 : x
  2. Step 2: Convert to fraction form
    113,145.49/169,718.23 = 28,905.83/x
  3. Step 3: Cross multiply
    113,145.49x = 169,718.23 × 28,905.83
  4. Step 4: Simplify right side
    113,145.49x = 4,905,846,304.28
  5. Step 5: Solve for x
    x = 4,905,846,304.28/113,145.49
  6. Step 6: Final answer
    x = 43,358.74

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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.