Home / 112,174.21-154,645.36-89,589.25

Finding the Fourth Proportional to 112,174.21, 154,645.36 and 89,589.25

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Solution

The fourth proportional to 112,174.21, 154,645.36 and 89,589.25 is: 123,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,174.21 : 154,645.36 = 89,589.25 : x
  2. Step 2: Convert to fraction form
    112,174.21/154,645.36 = 89,589.25/x
  3. Step 3: Cross multiply
    112,174.21x = 154,645.36 × 89,589.25
  4. Step 4: Simplify right side
    112,174.21x = 13,854,561,818.38
  5. Step 5: Solve for x
    x = 13,854,561,818.38/112,174.21
  6. Step 6: Final answer
    x = 123,509.33

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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.