Home / 205,109.40-307,664.10-116,328.60

Finding the Fourth Proportional to 205,109.40, 307,664.10 and 116,328.60

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Solution

The fourth proportional to 205,109.40, 307,664.10 and 116,328.60 is: 174,492.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,109.40 : 307,664.10 = 116,328.60 : x
  2. Step 2: Convert to fraction form
    205,109.40/307,664.10 = 116,328.60/x
  3. Step 3: Cross multiply
    205,109.40x = 307,664.10 × 116,328.60
  4. Step 4: Simplify right side
    205,109.40x = 35,790,134,023.26
  5. Step 5: Solve for x
    x = 35,790,134,023.26/205,109.40
  6. Step 6: Final answer
    x = 174,492.90

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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.