Home / 100,883.68-151,189.44-38,520.16

Finding the Fourth Proportional to 100,883.68, 151,189.44 and 38,520.16

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Solution

The fourth proportional to 100,883.68, 151,189.44 and 38,520.16 is: 57,728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,883.68 : 151,189.44 = 38,520.16 : x
  2. Step 2: Convert to fraction form
    100,883.68/151,189.44 = 38,520.16/x
  3. Step 3: Cross multiply
    100,883.68x = 151,189.44 × 38,520.16
  4. Step 4: Simplify right side
    100,883.68x = 5,823,841,419.11
  5. Step 5: Solve for x
    x = 5,823,841,419.11/100,883.68
  6. Step 6: Final answer
    x = 57,728.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.