Home / 109,911.60-151,512.66-85,996.74

Finding the Fourth Proportional to 109,911.60, 151,512.66 and 85,996.74

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Solution

The fourth proportional to 109,911.60, 151,512.66 and 85,996.74 is: 118,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,911.60 : 151,512.66 = 85,996.74 : x
  2. Step 2: Convert to fraction form
    109,911.60/151,512.66 = 85,996.74/x
  3. Step 3: Cross multiply
    109,911.60x = 151,512.66 × 85,996.74
  4. Step 4: Simplify right side
    109,911.60x = 13,029,594,828.73
  5. Step 5: Solve for x
    x = 13,029,594,828.73/109,911.60
  6. Step 6: Final answer
    x = 118,546.13

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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.