Home / 110,461.40-165,528.26-81,134.04

Finding the Fourth Proportional to 110,461.40, 165,528.26 and 81,134.04

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Solution

The fourth proportional to 110,461.40, 165,528.26 and 81,134.04 is: 121,580.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,461.40 : 165,528.26 = 81,134.04 : x
  2. Step 2: Convert to fraction form
    110,461.40/165,528.26 = 81,134.04/x
  3. Step 3: Cross multiply
    110,461.40x = 165,528.26 × 81,134.04
  4. Step 4: Simplify right side
    110,461.40x = 13,429,976,467.97
  5. Step 5: Solve for x
    x = 13,429,976,467.97/110,461.40
  6. Step 6: Final answer
    x = 121,580.72

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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.