Home / 109,815.23-164,763.84-43,301.72

Finding the Fourth Proportional to 109,815.23, 164,763.84 and 43,301.72

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Solution

The fourth proportional to 109,815.23, 164,763.84 and 43,301.72 is: 64,968.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,815.23 : 164,763.84 = 43,301.72 : x
  2. Step 2: Convert to fraction form
    109,815.23/164,763.84 = 43,301.72/x
  3. Step 3: Cross multiply
    109,815.23x = 164,763.84 × 43,301.72
  4. Step 4: Simplify right side
    109,815.23x = 7,134,558,077.71
  5. Step 5: Solve for x
    x = 7,134,558,077.71/109,815.23
  6. Step 6: Final answer
    x = 64,968.75

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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.