Home / 151,900.18-209,621.23-83,921.54

Finding the Fourth Proportional to 151,900.18, 209,621.23 and 83,921.54

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Solution

The fourth proportional to 151,900.18, 209,621.23 and 83,921.54 is: 115,811.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,900.18 : 209,621.23 = 83,921.54 : x
  2. Step 2: Convert to fraction form
    151,900.18/209,621.23 = 83,921.54/x
  3. Step 3: Cross multiply
    151,900.18x = 209,621.23 × 83,921.54
  4. Step 4: Simplify right side
    151,900.18x = 17,591,735,180.38
  5. Step 5: Solve for x
    x = 17,591,735,180.38/151,900.18
  6. Step 6: Final answer
    x = 115,811.16

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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.