Home / 107,715.43-148,625.58-65,249.29

Finding the Fourth Proportional to 107,715.43, 148,625.58 and 65,249.29

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Solution

The fourth proportional to 107,715.43, 148,625.58 and 65,249.29 is: 90,030.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,715.43 : 148,625.58 = 65,249.29 : x
  2. Step 2: Convert to fraction form
    107,715.43/148,625.58 = 65,249.29/x
  3. Step 3: Cross multiply
    107,715.43x = 148,625.58 × 65,249.29
  4. Step 4: Simplify right side
    107,715.43x = 9,697,713,570.84
  5. Step 5: Solve for x
    x = 9,697,713,570.84/107,715.43
  6. Step 6: Final answer
    x = 90,030.87

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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.