Home / 109,931.13-164,903.58-31,051.44

Finding the Fourth Proportional to 109,931.13, 164,903.58 and 31,051.44

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Solution

The fourth proportional to 109,931.13, 164,903.58 and 31,051.44 is: 46,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,931.13 : 164,903.58 = 31,051.44 : x
  2. Step 2: Convert to fraction form
    109,931.13/164,903.58 = 31,051.44/x
  3. Step 3: Cross multiply
    109,931.13x = 164,903.58 × 31,051.44
  4. Step 4: Simplify right side
    109,931.13x = 5,120,493,620.16
  5. Step 5: Solve for x
    x = 5,120,493,620.16/109,931.13
  6. Step 6: Final answer
    x = 46,579.10

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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.