Home / 112,930.11-170,420.03-109,165.77

Finding the Fourth Proportional to 112,930.11, 170,420.03 and 109,165.77

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Solution

The fourth proportional to 112,930.11, 170,420.03 and 109,165.77 is: 164,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,930.11 : 170,420.03 = 109,165.77 : x
  2. Step 2: Convert to fraction form
    112,930.11/170,420.03 = 109,165.77/x
  3. Step 3: Cross multiply
    112,930.11x = 170,420.03 × 109,165.77
  4. Step 4: Simplify right side
    112,930.11x = 18,604,033,252.54
  5. Step 5: Solve for x
    x = 18,604,033,252.54/112,930.11
  6. Step 6: Final answer
    x = 164,739.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.