Home / 128,522.60-177,336.56-83,194.29

Finding the Fourth Proportional to 128,522.60, 177,336.56 and 83,194.29

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Solution

The fourth proportional to 128,522.60, 177,336.56 and 83,194.29 is: 114,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,522.60 : 177,336.56 = 83,194.29 : x
  2. Step 2: Convert to fraction form
    128,522.60/177,336.56 = 83,194.29/x
  3. Step 3: Cross multiply
    128,522.60x = 177,336.56 × 83,194.29
  4. Step 4: Simplify right side
    128,522.60x = 14,753,388,784.27
  5. Step 5: Solve for x
    x = 14,753,388,784.27/128,522.60
  6. Step 6: Final answer
    x = 114,792.18

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1.5x scale

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.