Home / 151,919.60-209,583.20-91,455.23

Finding the Fourth Proportional to 151,919.60, 209,583.20 and 91,455.23

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Solution

The fourth proportional to 151,919.60, 209,583.20 and 91,455.23 is: 126,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,919.60 : 209,583.20 = 91,455.23 : x
  2. Step 2: Convert to fraction form
    151,919.60/209,583.20 = 91,455.23/x
  3. Step 3: Cross multiply
    151,919.60x = 209,583.20 × 91,455.23
  4. Step 4: Simplify right side
    151,919.60x = 19,167,478,819.39
  5. Step 5: Solve for x
    x = 19,167,478,819.39/151,919.60
  6. Step 6: Final answer
    x = 126,168.57

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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.