Home / 109,949.77-151,652.49-100,904.37

Finding the Fourth Proportional to 109,949.77, 151,652.49 and 100,904.37

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Solution

The fourth proportional to 109,949.77, 151,652.49 and 100,904.37 is: 139,176.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,949.77 : 151,652.49 = 100,904.37 : x
  2. Step 2: Convert to fraction form
    109,949.77/151,652.49 = 100,904.37/x
  3. Step 3: Cross multiply
    109,949.77x = 151,652.49 × 100,904.37
  4. Step 4: Simplify right side
    109,949.77x = 15,302,398,015.29
  5. Step 5: Solve for x
    x = 15,302,398,015.29/109,949.77
  6. Step 6: Final answer
    x = 139,176.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.