Home / 109,716.29-151,408.40-59,415.29

Finding the Fourth Proportional to 109,716.29, 151,408.40 and 59,415.29

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Solution

The fourth proportional to 109,716.29, 151,408.40 and 59,415.29 is: 81,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,716.29 : 151,408.40 = 59,415.29 : x
  2. Step 2: Convert to fraction form
    109,716.29/151,408.40 = 59,415.29/x
  3. Step 3: Cross multiply
    109,716.29x = 151,408.40 × 59,415.29
  4. Step 4: Simplify right side
    109,716.29x = 8,995,972,940.32
  5. Step 5: Solve for x
    x = 8,995,972,940.32/109,716.29
  6. Step 6: Final answer
    x = 81,993.05

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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.