Home / 151,889.15-209,490.54-91,396.73

Finding the Fourth Proportional to 151,889.15, 209,490.54 and 91,396.73

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Solution

The fourth proportional to 151,889.15, 209,490.54 and 91,396.73 is: 126,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,889.15 : 209,490.54 = 91,396.73 : x
  2. Step 2: Convert to fraction form
    151,889.15/209,490.54 = 91,396.73/x
  3. Step 3: Cross multiply
    151,889.15x = 209,490.54 × 91,396.73
  4. Step 4: Simplify right side
    151,889.15x = 19,146,750,502.92
  5. Step 5: Solve for x
    x = 19,146,750,502.92/151,889.15
  6. Step 6: Final answer
    x = 126,057.39

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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.